diff --git a/01-intro.html b/01-intro.html
index e878d83f5..2dfe9b75a 100644
--- a/01-intro.html
+++ b/01-intro.html
@@ -403,12 +403,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <pre class="output" tabindex="0"><code>Desktop     Downloads   Movies      Pictures
 Documents   Library     Music       Public</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="command-not-found" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="command-not-found">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a></h3>
+<div id="command-not-found" class="callout-inner">
+<h3 class="callout-title">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
+</h3>
 <div class="callout-content">
 <p>If the shell can’t find a program whose name is the command you
 typed, it will print an error message such as:</p>
@@ -518,7 +519,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -541,7 +542,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/01-intro.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-06-09",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/02-filedir.html b/02-filedir.html
index 9953f56fe..638bfdf5d 100644
--- a/02-filedir.html
+++ b/02-filedir.html
@@ -340,12 +340,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Here, the computer’s response is <code>/Users/nelle</code>, which is
 Nelle’s <strong>home directory</strong>:</p>
-<div id="callout1" class="callout">
+<div id="home-directory-variation" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="home-directory-variation">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a></h3>
+<div id="home-directory-variation" class="callout-inner">
+<h3 class="callout-title">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
+</h3>
 <div class="callout-content">
 <p>The home directory path will look different on different operating
 systems. On Linux, it may look like <code>/home/nelle</code>, and on
@@ -384,12 +385,13 @@ <h3 class="callout-title" id="home-directory-variation">Home Directory Variation
 first part of its name. Similarly, we know that <code>/Users</code> is
 stored inside the root directory <code>/</code> because its name begins
 with <code>/</code>.</p>
-<div id="callout2" class="callout">
+<div id="slashes" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="slashes">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a></h3>
+<div id="slashes" class="callout-inner">
+<h3 class="callout-title">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
+</h3>
 <div class="callout-content">
 <p>Notice that there are two meanings for the <code>/</code> character.
 When it appears at the front of a file or directory name, it refers to
@@ -451,12 +453,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <strong>sub-directories</strong>. Any names in the output that don’t
 have a classification symbol are <strong>files</strong> in the current
 working directory.</p>
-<div id="callout3" class="callout">
+<div id="clearing-your-terminal" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="clearing-your-terminal">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a></h3>
+<div id="clearing-your-terminal" class="callout-inner">
+<h3 class="callout-title">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
+</h3>
 <div class="callout-content">
 <p>If your screen gets too cluttered, you can clear your terminal using
 the <code>clear</code> command. You can still access previous commands
@@ -486,12 +489,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" tabindex="-1"></a><span class="ex">$</span> man ls</span></code></pre>
 </div>
 <p>We’ll describe both ways next.</p>
-<div id="callout4" class="callout">
+<div id="help-for-built-in-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="help-for-built-in-commands">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a></h3>
+<div id="help-for-built-in-commands" class="callout-inner">
+<h3 class="callout-title">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
+</h3>
 <div class="callout-content">
 <p>Some commands are built in to the Bash shell, rather than existing as
 separate programs on the filesystem. One example is the <code>cd</code>
@@ -541,12 +545,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   -F, --classify             append indicator (one of */=&gt;@|) to entries
 ...        ...        ...</code></pre>
 </div>
-<div id="callout5" class="callout">
+<div id="when-to-use-short-or-long-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="when-to-use-short-or-long-options">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a></h3>
+<div id="when-to-use-short-or-long-options" class="callout-inner">
+<h3 class="callout-title">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
+</h3>
 <div class="callout-content">
 <p>When options exist as both short and long options:</p>
 <ul><li>Use the short option when typing commands directly into the shell to
@@ -556,12 +561,13 @@ <h3 class="callout-title" id="when-to-use-short-or-long-options">When to use sho
 </ul></div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="unsupported-command-line-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="unsupported-command-line-options">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a></h3>
+<div id="unsupported-command-line-options" class="callout-inner">
+<h3 class="callout-title">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
+</h3>
 <div class="callout-content">
 <p>If you try to use an option that is not supported, <code>ls</code>
 and other commands will usually print an error message similar to:</p>
@@ -600,12 +606,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <kbd>Shift</kbd>+<kbd>N</kbd> (for moving backward).</p>
 <p>To <strong>quit</strong> the <code>man</code> pages, press
 <kbd>Q</kbd>.</p>
-<div id="callout7" class="callout">
+<div id="manual-pages-on-the-web" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="manual-pages-on-the-web">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a></h3>
+<div id="manual-pages-on-the-web" class="callout-inner">
+<h3 class="callout-title">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
+</h3>
 <div class="callout-content">
 <p>Of course, there is a third way to access help for commands:
 searching the internet via your web browser. When using internet search,
@@ -640,7 +647,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Options<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The <code>-l</code> option makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -676,7 +683,7 @@ <h3 class="callout-title">Listing in Reverse Chronological Order<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>The most recently changed file is listed last when using
 <code>-rt</code>. This can be very useful for finding your most recent
@@ -853,12 +860,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>Note that in most command line tools, multiple options can be
 combined with a single <code>-</code> and no spaces between the options;
 <code>ls -F -a</code> is equivalent to <code>ls -Fa</code>.</p>
-<div id="callout8" class="callout">
+<div id="other-hidden-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-hidden-files">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a></h3>
+<div id="other-hidden-files" class="callout-inner">
+<h3 class="callout-title">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
+</h3>
 <div class="callout-content">
 <p>In addition to the hidden directories <code>..</code> and
 <code>.</code>, you may also see a file called
@@ -944,12 +952,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 <p>Run <code>pwd</code> and <code>ls -F</code> to ensure that we’re in
 the directory we expect.</p>
-<div id="callout9" class="callout">
+<div id="two-more-shortcuts" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-more-shortcuts">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a></h3>
+<div id="two-more-shortcuts" class="callout-inner">
+<h3 class="callout-title">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
+</h3>
 <div class="callout-content">
 <p>The shell interprets a tilde (<code>~</code>) character at the start
 of a path to mean “the current user’s home directory”. For example, if
@@ -1021,7 +1030,7 @@ <h3 class="callout-title">Absolute vs Relative Paths<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>.</code> stands for the current directory.</li>
 <li>No: <code>/</code> stands for the root directory.</li>
@@ -1062,7 +1071,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: there <em>is</em> a directory <code>backup</code> in
 <code>/Users</code>.</li>
@@ -1104,7 +1113,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>pwd</code> is not the name of a directory.</li>
 <li>Yes: <code>ls</code> without directory argument lists files and
@@ -1323,7 +1332,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1346,7 +1355,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/02-filedir.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-03-08",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/03-create.html b/03-create.html
index 8b01a34a6..2ecc3dea2 100644
--- a/03-create.html
+++ b/03-create.html
@@ -402,12 +402,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 
 ../project/results:</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="two-ways-of-doing-the-same-thing" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a></h3>
+<div id="two-ways-of-doing-the-same-thing" class="callout-inner">
+<h3 class="callout-title">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
+</h3>
 <div class="callout-content">
 <p>Using the shell to create a directory is no different than using a
 file explorer. If you open the current directory using your operating
@@ -418,12 +419,13 @@ <h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doin
 </div>
 </div>
 </div>
-<div id="callout2" class="callout">
+<div id="good-names-for-files-and-directories" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="good-names-for-files-and-directories">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a></h3>
+<div id="good-names-for-files-and-directories" class="callout-inner">
+<h3 class="callout-title">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
+</h3>
 <div class="callout-content">
 <p>Complicated names of files and directories can make your life painful
 when working on the command line. Here we provide a few useful tips for
@@ -464,12 +466,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" tabindex="-1"></a><span class="ex">$</span> cd thesis</span>
 <span id="cb12-2"><a href="#cb12-2" tabindex="-1"></a><span class="ex">$</span> nano draft.txt</span></code></pre>
 </div>
-<div id="callout3" class="callout">
+<div id="which-editor" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a></h3>
+<div id="which-editor" class="callout-inner">
+<h3 class="callout-title">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
+</h3>
 <div class="callout-content">
 <p>When we say, ‘<code>nano</code> is a text editor’ we really do mean
 ‘text’. It can only work with plain character data, not tables, images,
@@ -501,12 +504,13 @@ <h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-
 to accept the suggested default of <code>draft.txt</code>.</p>
 <p>Once our file is saved, we can use <kbd>Ctrl</kbd>+<kbd>X</kbd> to
 quit the editor and return to the shell.</p>
-<div id="callout4" class="callout">
+<div id="control-ctrl-or-key" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="control-ctrl-or-key">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a></h3>
+<div id="control-ctrl-or-key" class="callout-inner">
+<h3 class="callout-title">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
+</h3>
 <div class="callout-content">
 <p>The Control key is also called the ‘Ctrl’ key. There are various ways
 in which using the Control key may be described. For example, you may
@@ -607,12 +611,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 </div>
-<div id="callout5" class="callout">
+<div id="whats-in-a-name" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="whats-in-a-name">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a></h3>
+<div id="whats-in-a-name" class="callout-inner">
+<h3 class="callout-title">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
+</h3>
 <div class="callout-content">
 <p>You may have noticed that all of Nelle’s files are named ‘something
 dot something’, and in this part of the lesson, we always used the
@@ -975,12 +980,13 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </h3>
 <pre class="error" tabindex="0"><code>ls: cannot access 'quotes.txt': No such file or directory</code></pre>
 </div>
-<div id="callout6" class="callout">
+<div id="deleting-is-forever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="deleting-is-forever">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a></h3>
+<div id="deleting-is-forever" class="callout-inner">
+<h3 class="callout-title">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
+</h3>
 <div class="callout-content">
 <p>The Unix shell doesn’t have a trash bin that we can recover deleted
 files from (though most graphical interfaces to Unix do). Instead, when
@@ -1123,12 +1129,13 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </div>
 <div class="section level3">
 <h3 id="using-wildcards-for-accessing-multiple-files-at-once">Using wildcards for accessing multiple files at once<a class="anchor" aria-label="anchor" href="#using-wildcards-for-accessing-multiple-files-at-once"></a></h3>
-<div id="callout7" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a></h3>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+</h3>
 <div class="callout-content">
 <p><code>*</code> is a <strong>wildcard</strong>, which represents zero
 or more other characters. Let’s consider the
@@ -1551,7 +1558,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1574,7 +1581,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/03-create.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-03-08",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/04-pipefilter.html b/04-pipefilter.html
index 813698276..b6d1e4e23 100644
--- a/04-pipefilter.html
+++ b/04-pipefilter.html
@@ -387,12 +387,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>The <code>-m</code> and <code>-w</code> options can also be used with
 the <code>wc</code> command to show only the number of characters or the
 number of words, respectively.</p>
-<div id="callout1" class="callout">
+<div id="why-isnt-it-doing-anything" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="why-isnt-it-doing-anything">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a></h3>
+<div id="why-isnt-it-doing-anything" class="callout-inner">
+<h3 class="callout-title">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
+</h3>
 <div class="callout-content">
 <p>What happens if a command is supposed to process a file, but we don’t
 give it a filename? For example, what if we type:</p>
@@ -464,12 +465,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   15  propane.pdb
  107  total</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="output-page-by-page" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="output-page-by-page">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a></h3>
+<div id="output-page-by-page" class="callout-inner">
+<h3 class="callout-title">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
+</h3>
 <div class="callout-content">
 <p>We’ll continue to use <code>cat</code> in this lesson, for
 convenience and consistency, but it has the disadvantage that it always
@@ -531,7 +533,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>-n</code> option specifies a numerical rather than an
 alphanumerical sort.</p>
@@ -581,12 +583,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 20, and so on. Since <code>sorted-lengths.txt</code> contains the
 lengths of our files ordered from least to greatest, the output of
 <code>head</code> must be the file with the fewest lines.</p>
-<div id="callout3" class="callout">
+<div id="redirecting-to-the-same-file" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="redirecting-to-the-same-file">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a></h3>
+<div id="redirecting-to-the-same-file" class="callout-inner">
+<h3 class="callout-title">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
+</h3>
 <div class="callout-content">
 <p>It’s a very bad idea to try redirecting the output of a command that
 operates on a file to the same file. For example:</p>
@@ -646,7 +649,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>In the first example with <code>&gt;</code>, the string ‘hello’ is
 written to <code>testfile01.txt</code>, but the file gets overwritten
@@ -697,7 +700,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Option 3 is correct. For option 1 to be correct we would only run the
 <code>head</code> command. For option 2 to be correct we would only run
@@ -799,7 +802,7 @@ <h3 class="callout-title">Piping Commands Together<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Option 4 is the solution. The pipe character <code>|</code> is used
 to connect the output from one command to the input of another.
@@ -864,7 +867,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>head</code> command extracts the first 5 lines from
 <code>animals.csv</code>. Then, the last 3 lines are extracted from the
@@ -928,7 +931,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -977,7 +980,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Option 4. is the correct answer. If you have difficulty understanding
 why, try running the commands, or sub-sections of the pipelines (make
@@ -1092,7 +1095,7 @@ <h3 class="callout-title">Removing Unneeded Files<a class="anchor" aria-label="a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>This would remove <code>.txt</code> files with one-character
 names</li>
@@ -1177,7 +1180,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1200,7 +1203,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/04-pipefilter.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-01-17",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/05-loop.html b/05-loop.html
index 96bb4f4f2..543b83cd9 100644
--- a/05-loop.html
+++ b/05-loop.html
@@ -367,12 +367,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 unicorn.dat
 CLASSIFICATION: equus monoceros</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="follow-the-prompt" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a></h3>
+<div id="follow-the-prompt" class="callout-inner">
+<h3 class="callout-title">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
+</h3>
 <div class="callout-content">
 <p>The shell prompt changes from <code>$</code> to <code>&gt;</code> and
 back again as we were typing in our loop. The second prompt,
@@ -412,12 +413,13 @@ <h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anch
 runs the <code>head</code> command on that file, and <code>tail</code>
 on the output of that. Since the list was only three items, the shell
 exits the <code>for</code> loop.</p>
-<div id="callout2" class="callout">
+<div id="same-symbols-different-meanings" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="same-symbols-different-meanings">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a></h3>
+<div id="same-symbols-different-meanings" class="callout-inner">
+<h3 class="callout-title">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
+</h3>
 <div class="callout-content">
 <p>Here we see <code>&gt;</code> being used as a shell prompt, whereas
 <code>&gt;</code> is also used to redirect output. Similarly,
@@ -826,12 +828,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <code>head</code> and <code>tail</code> combination selects lines 81-100
 from whatever file is being processed (assuming the file has at least
 100 lines).</p>
-<div id="callout3" class="callout">
+<div id="spaces-in-names" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="spaces-in-names">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a></h3>
+<div id="spaces-in-names" class="callout-inner">
+<h3 class="callout-title">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
+</h3>
 <div class="callout-content">
 <p>Spaces are used to separate the elements of the list that we are
 going to loop over. If one of those elements contains a space character,
@@ -1032,12 +1035,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb40-1"><a href="#cb40-1" tabindex="-1"></a><span class="ex">$</span> for datafile in NENE<span class="pp">*</span>A.txt NENE<span class="pp">*</span>B.txt<span class="kw">;</span> <span class="cf">do</span> <span class="bu">echo</span> <span class="va">$datafile</span><span class="kw">;</span></span>
 <span id="cb40-2"><a href="#cb40-2" tabindex="-1"></a><span class="fu">bash</span> goostats.sh <span class="va">$datafile</span> stats-<span class="va">$datafile</span><span class="kw">;</span> <span class="cf">done</span></span></code></pre>
 </div>
-<div id="callout4" class="callout">
+<div id="beginning-and-end" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="beginning-and-end">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a></h3>
+<div id="beginning-and-end" class="callout-inner">
+<h3 class="callout-title">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
+</h3>
 <div class="callout-content">
 <p>We can move to the beginning of a line in the shell by typing
 <kbd>Ctrl</kbd>+<kbd>A</kbd> and to the end using
@@ -1061,13 +1065,14 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <code>cat stats-NENE01729B.txt</code> to examine one of the output
 files. It looks good, so she decides to get some coffee and catch up on
 her reading.</p>
-<div id="callout5" class="callout">
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="those-who-know-history-can-choose-to-repeat-it">Those Who Know History Can Choose to Repeat
-It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a></h3>
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout-inner">
+<h3 class="callout-title">Those Who Know History Can Choose to Repeat
+It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a>
+</h3>
 <div class="callout-content">
 <p>Another way to repeat previous work is to use the
 <code>history</code> command to get a list of the last few hundred
@@ -1094,12 +1099,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="other-history-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-history-commands">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a></h3>
+<div id="other-history-commands" class="callout-inner">
+<h3 class="callout-title">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
+</h3>
 <div class="callout-content">
 <p>There are a number of other shortcut commands for getting at the
 history.</p>
@@ -1297,7 +1303,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1320,7 +1326,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/05-loop.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-11-10",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/06-script.html b/06-script.html
index d18618e88..75879b74d 100644
--- a/06-script.html
+++ b/06-script.html
@@ -362,12 +362,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Sure enough, our script’s output is exactly what we would get if we
 ran that pipeline directly.</p>
-<div id="callout1" class="callout">
+<div id="text-vs.-whatever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="text-vs--whatever">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs--whatever"></a></h3>
+<div id="text-vs.-whatever" class="callout-inner">
+<h3 class="callout-title">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs.-whatever"></a>
+</h3>
 <div class="callout-content">
 <p>We usually call programs like Microsoft Word or LibreOffice Writer
 “text editors”, but we need to be a bit more careful when it comes to
@@ -427,12 +428,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 ATOM     12  H           1      -0.048  -1.362  -0.205  1.00  0.00
 ATOM     13  H           1      -1.183   0.500  -1.412  1.00  0.00</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="double-quotes-around-arguments" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="double-quotes-around-arguments">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a></h3>
+<div id="double-quotes-around-arguments" class="callout-inner">
+<h3 class="callout-title">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
+</h3>
 <div class="callout-content">
 <p>For the same reason that we put the loop variable inside
 double-quotes, in case the filename happens to contain any spaces, we
@@ -1049,7 +1051,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1072,7 +1074,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/06-script.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-08-05",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/07-find.html b/07-find.html
index 063df79b6..c252a3e20 100644
--- a/07-find.html
+++ b/07-find.html
@@ -559,12 +559,13 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout1" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a></h3>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+</h3>
 <div class="callout-content">
 <p><code>grep</code>‘s real power doesn’t come from its options, though;
 it comes from the fact that patterns can include wildcards. (The
@@ -872,12 +873,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <span><span class="va">.</span><span class="op">/</span><span class="va">writing</span><span class="op">/</span><span class="va">haiku.txt</span></span>
 <span><span class="va">.</span><span class="op">/</span><span class="va">numbers.txt</span></span></code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="listing-vs.-finding" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="listing-vs--finding">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs--finding"></a></h3>
+<div id="listing-vs.-finding" class="callout-inner">
+<h3 class="callout-title">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs.-finding"></a>
+</h3>
 <div class="callout-content">
 <p><code>ls</code> and <code>find</code> can be made to do similar
 things given the right options, but under normal circumstances,
@@ -980,12 +982,13 @@ <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout3" class="callout">
+<div id="binary-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="binary-files">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a></h3>
+<div id="binary-files" class="callout-inner">
+<h3 class="callout-title">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
+</h3>
 <div class="callout-content">
 <p>We have focused exclusively on finding patterns in text files. What
 if your data is stored as images, in databases, or in some other
@@ -1114,7 +1117,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1137,7 +1140,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/07-find.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-11-09",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 7beae8b2f..fc397bab6 100644
--- a/404.html
+++ b/404.html
@@ -297,7 +297,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -319,8 +319,8 @@ <h1>Page not found</h1>
   "url": "https://swcarpentry.github.io/shell-novice/404.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/404.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 136dd4f69..5a3b684b3 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -314,7 +314,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -337,7 +337,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/CODE_OF_CONDUCT.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 41c4c0918..ebfdc35ae 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -365,7 +365,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -388,7 +388,7 @@ <h1>Licenses</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/LICENSE.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index 7d92e3009..6f6abb352 100644
--- a/aio.html
+++ b/aio.html
@@ -448,12 +448,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <pre class="output" tabindex="0"><code>Desktop     Downloads   Movies      Pictures
 Documents   Library     Music       Public</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="command-not-found" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="command-not-found">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
+<div id="command-not-found" class="callout-inner">
+<h3 class="callout-title">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
 </h3>
 <div class="callout-content">
 <p>If the shell can’t find a program whose name is the command you
@@ -604,12 +604,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Here, the computer’s response is <code>/Users/nelle</code>, which is
 Nelle’s <strong>home directory</strong>:</p>
-<div id="callout1" class="callout">
+<div id="home-directory-variation" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="home-directory-variation">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
+<div id="home-directory-variation" class="callout-inner">
+<h3 class="callout-title">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
 </h3>
 <div class="callout-content">
 <p>The home directory path will look different on different operating
@@ -649,12 +649,12 @@ <h3 class="callout-title" id="home-directory-variation">Home Directory Variation
 first part of its name. Similarly, we know that <code>/Users</code> is
 stored inside the root directory <code>/</code> because its name begins
 with <code>/</code>.</p>
-<div id="callout2" class="callout">
+<div id="slashes" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="slashes">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
+<div id="slashes" class="callout-inner">
+<h3 class="callout-title">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
 </h3>
 <div class="callout-content">
 <p>Notice that there are two meanings for the <code>/</code> character.
@@ -719,12 +719,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <strong>sub-directories</strong>. Any names in the output that don’t
 have a classification symbol are <strong>files</strong> in the current
 working directory.</p>
-<div id="callout3" class="callout">
+<div id="clearing-your-terminal" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="clearing-your-terminal">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
+<div id="clearing-your-terminal" class="callout-inner">
+<h3 class="callout-title">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
 </h3>
 <div class="callout-content">
 <p>If your screen gets too cluttered, you can clear your terminal using
@@ -760,12 +760,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" tabindex="-1"></a><span class="ex">$</span> man ls</span></code></pre>
 </div>
 <p>We’ll describe both ways next.</p>
-<div id="callout4" class="callout">
+<div id="help-for-built-in-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="help-for-built-in-commands">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
+<div id="help-for-built-in-commands" class="callout-inner">
+<h3 class="callout-title">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
 </h3>
 <div class="callout-content">
 <p>Some commands are built in to the Bash shell, rather than existing as
@@ -817,12 +817,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   -F, --classify             append indicator (one of */=&gt;@|) to entries
 ...        ...        ...</code></pre>
 </div>
-<div id="callout5" class="callout">
+<div id="when-to-use-short-or-long-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="when-to-use-short-or-long-options">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
+<div id="when-to-use-short-or-long-options" class="callout-inner">
+<h3 class="callout-title">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
 </h3>
 <div class="callout-content">
 <p>When options exist as both short and long options:</p>
@@ -835,12 +835,12 @@ <h3 class="callout-title" id="when-to-use-short-or-long-options">When to use sho
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="unsupported-command-line-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="unsupported-command-line-options">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
+<div id="unsupported-command-line-options" class="callout-inner">
+<h3 class="callout-title">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
 </h3>
 <div class="callout-content">
 <p>If you try to use an option that is not supported, <code>ls</code>
@@ -881,12 +881,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <kbd>Shift</kbd>+<kbd>N</kbd> (for moving backward).</p>
 <p>To <strong>quit</strong> the <code>man</code> pages, press
 <kbd>Q</kbd>.</p>
-<div id="callout7" class="callout">
+<div id="manual-pages-on-the-web" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="manual-pages-on-the-web">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
+<div id="manual-pages-on-the-web" class="callout-inner">
+<h3 class="callout-title">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
 </h3>
 <div class="callout-content">
 <p>Of course, there is a third way to access help for commands:
@@ -922,7 +922,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Options<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The <code>-l</code> option makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -958,7 +958,7 @@ <h3 class="callout-title">Listing in Reverse Chronological Order<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>The most recently changed file is listed last when using
 <code>-rt</code>. This can be very useful for finding your most recent
@@ -1136,12 +1136,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>Note that in most command line tools, multiple options can be
 combined with a single <code>-</code> and no spaces between the options;
 <code>ls -F -a</code> is equivalent to <code>ls -Fa</code>.</p>
-<div id="callout8" class="callout">
+<div id="other-hidden-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-hidden-files">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
+<div id="other-hidden-files" class="callout-inner">
+<h3 class="callout-title">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
 </h3>
 <div class="callout-content">
 <p>In addition to the hidden directories <code>..</code> and
@@ -1228,12 +1228,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 <p>Run <code>pwd</code> and <code>ls -F</code> to ensure that we’re in
 the directory we expect.</p>
-<div id="callout9" class="callout">
+<div id="two-more-shortcuts" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-more-shortcuts">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
+<div id="two-more-shortcuts" class="callout-inner">
+<h3 class="callout-title">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
 </h3>
 <div class="callout-content">
 <p>The shell interprets a tilde (<code>~</code>) character at the start
@@ -1309,7 +1309,7 @@ <h3 class="callout-title">Absolute vs Relative Paths<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>.</code> stands for the current directory.</li>
@@ -1355,7 +1355,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: there <em>is</em> a directory <code>backup</code> in
@@ -1401,7 +1401,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>pwd</code> is not the name of a directory.</li>
@@ -1723,12 +1723,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 
 ../project/results:</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="two-ways-of-doing-the-same-thing" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
+<div id="two-ways-of-doing-the-same-thing" class="callout-inner">
+<h3 class="callout-title">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
 </h3>
 <div class="callout-content">
 <p>Using the shell to create a directory is no different than using a
@@ -1740,12 +1740,12 @@ <h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doin
 </div>
 </div>
 </div>
-<div id="callout2" class="callout">
+<div id="good-names-for-files-and-directories" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="good-names-for-files-and-directories">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
+<div id="good-names-for-files-and-directories" class="callout-inner">
+<h3 class="callout-title">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
 </h3>
 <div class="callout-content">
 <p>Complicated names of files and directories can make your life painful
@@ -1794,12 +1794,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" tabindex="-1"></a><span class="ex">$</span> cd thesis</span>
 <span id="cb12-2"><a href="#cb12-2" tabindex="-1"></a><span class="ex">$</span> nano draft.txt</span></code></pre>
 </div>
-<div id="callout3" class="callout">
+<div id="which-editor" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
+<div id="which-editor" class="callout-inner">
+<h3 class="callout-title">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
 </h3>
 <div class="callout-content">
 <p>When we say, ‘<code>nano</code> is a text editor’ we really do mean
@@ -1832,12 +1832,12 @@ <h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-
 to accept the suggested default of <code>draft.txt</code>.</p>
 <p>Once our file is saved, we can use <kbd>Ctrl</kbd>+<kbd>X</kbd> to
 quit the editor and return to the shell.</p>
-<div id="callout4" class="callout">
+<div id="control-ctrl-or-key" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="control-ctrl-or-key">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
+<div id="control-ctrl-or-key" class="callout-inner">
+<h3 class="callout-title">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
 </h3>
 <div class="callout-content">
 <p>The Control key is also called the ‘Ctrl’ key. There are various ways
@@ -1945,12 +1945,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 </div>
-<div id="callout5" class="callout">
+<div id="whats-in-a-name" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="whats-in-a-name">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
+<div id="whats-in-a-name" class="callout-inner">
+<h3 class="callout-title">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
 </h3>
 <div class="callout-content">
 <p>You may have noticed that all of Nelle’s files are named ‘something
@@ -2325,12 +2325,12 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </h3>
 <pre class="error" tabindex="0"><code>ls: cannot access 'quotes.txt': No such file or directory</code></pre>
 </div>
-<div id="callout6" class="callout">
+<div id="deleting-is-forever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="deleting-is-forever">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
+<div id="deleting-is-forever" class="callout-inner">
+<h3 class="callout-title">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
 </h3>
 <div class="callout-content">
 <p>The Unix shell doesn’t have a trash bin that we can recover deleted
@@ -2476,12 +2476,12 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 <div class="section level3">
 <h3 id="using-wildcards-for-accessing-multiple-files-at-once">Using wildcards for accessing multiple files at once<a class="anchor" aria-label="anchor" href="#using-wildcards-for-accessing-multiple-files-at-once"></a>
 </h3>
-<div id="callout7" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
 </h3>
 <div class="callout-content">
 <p><code>*</code> is a <strong>wildcard</strong>, which represents zero
@@ -2987,12 +2987,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>The <code>-m</code> and <code>-w</code> options can also be used with
 the <code>wc</code> command to show only the number of characters or the
 number of words, respectively.</p>
-<div id="callout1" class="callout">
+<div id="why-isnt-it-doing-anything" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="why-isnt-it-doing-anything">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
+<div id="why-isnt-it-doing-anything" class="callout-inner">
+<h3 class="callout-title">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
 </h3>
 <div class="callout-content">
 <p>What happens if a command is supposed to process a file, but we don’t
@@ -3066,12 +3066,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   15  propane.pdb
  107  total</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="output-page-by-page" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="output-page-by-page">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
+<div id="output-page-by-page" class="callout-inner">
+<h3 class="callout-title">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
 </h3>
 <div class="callout-content">
 <p>We’ll continue to use <code>cat</code> in this lesson, for
@@ -3135,7 +3135,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>-n</code> option specifies a numerical rather than an
 alphanumerical sort.</p>
@@ -3185,12 +3185,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 20, and so on. Since <code>sorted-lengths.txt</code> contains the
 lengths of our files ordered from least to greatest, the output of
 <code>head</code> must be the file with the fewest lines.</p>
-<div id="callout3" class="callout">
+<div id="redirecting-to-the-same-file" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="redirecting-to-the-same-file">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
+<div id="redirecting-to-the-same-file" class="callout-inner">
+<h3 class="callout-title">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
 </h3>
 <div class="callout-content">
 <p>It’s a very bad idea to try redirecting the output of a command that
@@ -3251,7 +3251,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>In the first example with <code>&gt;</code>, the string ‘hello’ is
 written to <code>testfile01.txt</code>, but the file gets overwritten
@@ -3304,7 +3304,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Option 3 is correct. For option 1 to be correct we would only run the
 <code>head</code> command. For option 2 to be correct we would only run
@@ -3410,7 +3410,7 @@ <h3 class="callout-title">Piping Commands Together<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Option 4 is the solution. The pipe character <code>|</code> is used
 to connect the output from one command to the input of another.
@@ -3476,7 +3476,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>head</code> command extracts the first 5 lines from
 <code>animals.csv</code>. Then, the last 3 lines are extracted from the
@@ -3540,7 +3540,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3591,7 +3591,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Option 4. is the correct answer. If you have difficulty understanding
 why, try running the commands, or sub-sections of the pipelines (make
@@ -3709,7 +3709,7 @@ <h3 class="callout-title">Removing Unneeded Files<a class="anchor" aria-label="a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>This would remove <code>.txt</code> files with one-character
@@ -3861,12 +3861,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 unicorn.dat
 CLASSIFICATION: equus monoceros</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="follow-the-prompt" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
+<div id="follow-the-prompt" class="callout-inner">
+<h3 class="callout-title">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
 </h3>
 <div class="callout-content">
 <p>The shell prompt changes from <code>$</code> to <code>&gt;</code> and
@@ -3907,12 +3907,12 @@ <h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anch
 runs the <code>head</code> command on that file, and <code>tail</code>
 on the output of that. Since the list was only three items, the shell
 exits the <code>for</code> loop.</p>
-<div id="callout2" class="callout">
+<div id="same-symbols-different-meanings" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="same-symbols-different-meanings">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
+<div id="same-symbols-different-meanings" class="callout-inner">
+<h3 class="callout-title">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
 </h3>
 <div class="callout-content">
 <p>Here we see <code>&gt;</code> being used as a shell prompt, whereas
@@ -4332,12 +4332,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <code>head</code> and <code>tail</code> combination selects lines 81-100
 from whatever file is being processed (assuming the file has at least
 100 lines).</p>
-<div id="callout3" class="callout">
+<div id="spaces-in-names" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="spaces-in-names">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
+<div id="spaces-in-names" class="callout-inner">
+<h3 class="callout-title">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
 </h3>
 <div class="callout-content">
 <p>Spaces are used to separate the elements of the list that we are
@@ -4542,12 +4542,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb40-1"><a href="#cb40-1" tabindex="-1"></a><span class="ex">$</span> for datafile in NENE<span class="pp">*</span>A.txt NENE<span class="pp">*</span>B.txt<span class="kw">;</span> <span class="cf">do</span> <span class="bu">echo</span> <span class="va">$datafile</span><span class="kw">;</span></span>
 <span id="cb40-2"><a href="#cb40-2" tabindex="-1"></a><span class="fu">bash</span> goostats.sh <span class="va">$datafile</span> stats-<span class="va">$datafile</span><span class="kw">;</span> <span class="cf">done</span></span></code></pre>
 </div>
-<div id="callout4" class="callout">
+<div id="beginning-and-end" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="beginning-and-end">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
+<div id="beginning-and-end" class="callout-inner">
+<h3 class="callout-title">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
 </h3>
 <div class="callout-content">
 <p>We can move to the beginning of a line in the shell by typing
@@ -4572,12 +4572,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <code>cat stats-NENE01729B.txt</code> to examine one of the output
 files. It looks good, so she decides to get some coffee and catch up on
 her reading.</p>
-<div id="callout5" class="callout">
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="those-who-know-history-can-choose-to-repeat-it">Those Who Know History Can Choose to Repeat
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout-inner">
+<h3 class="callout-title">Those Who Know History Can Choose to Repeat
 It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a>
 </h3>
 <div class="callout-content">
@@ -4606,12 +4606,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="other-history-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-history-commands">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
+<div id="other-history-commands" class="callout-inner">
+<h3 class="callout-title">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
 </h3>
 <div class="callout-content">
 <p>There are a number of other shortcut commands for getting at the
@@ -4872,12 +4872,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Sure enough, our script’s output is exactly what we would get if we
 ran that pipeline directly.</p>
-<div id="callout1" class="callout">
+<div id="text-vs.-whatever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="text-vs--whatever">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs--whatever"></a>
+<div id="text-vs.-whatever" class="callout-inner">
+<h3 class="callout-title">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs.-whatever"></a>
 </h3>
 <div class="callout-content">
 <p>We usually call programs like Microsoft Word or LibreOffice Writer
@@ -4938,12 +4938,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 ATOM     12  H           1      -0.048  -1.362  -0.205  1.00  0.00
 ATOM     13  H           1      -1.183   0.500  -1.412  1.00  0.00</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="double-quotes-around-arguments" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="double-quotes-around-arguments">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
+<div id="double-quotes-around-arguments" class="callout-inner">
+<h3 class="callout-title">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
 </h3>
 <div class="callout-content">
 <p>For the same reason that we put the loop variable inside
@@ -5830,12 +5830,12 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout1" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
 </h3>
 <div class="callout-content">
 <p><code>grep</code>‘s real power doesn’t come from its options, though;
@@ -6144,12 +6144,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <span><span class="va">.</span><span class="op">/</span><span class="va">writing</span><span class="op">/</span><span class="va">haiku.txt</span></span>
 <span><span class="va">.</span><span class="op">/</span><span class="va">numbers.txt</span></span></code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="listing-vs.-finding" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="listing-vs--finding">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs--finding"></a>
+<div id="listing-vs.-finding" class="callout-inner">
+<h3 class="callout-title">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs.-finding"></a>
 </h3>
 <div class="callout-content">
 <p><code>ls</code> and <code>find</code> can be made to do similar
@@ -6255,12 +6255,12 @@ <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout3" class="callout">
+<div id="binary-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="binary-files">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
+<div id="binary-files" class="callout-inner">
+<h3 class="callout-title">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
 </h3>
 <div class="callout-content">
 <p>We have focused exclusively on finding patterns in text files. What
@@ -6379,7 +6379,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -6402,8 +6402,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://swcarpentry.github.io/shell-novice/aio.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/aio.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 029705654..e0ef03bfc 100644
--- a/discuss.html
+++ b/discuss.html
@@ -366,7 +366,7 @@ <h1>Discussion</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -389,7 +389,7 @@ <h1>Discussion</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/discuss.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 7ef4f0841..20a060d70 100644
--- a/images.html
+++ b/images.html
@@ -367,7 +367,7 @@ <h3 id="05-loop-figure-1">Figure 1</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -390,8 +390,8 @@ <h3 id="05-loop-figure-1">Figure 1</h3>
   "url": "https://swcarpentry.github.io/shell-novice/images.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/images.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index a4c5a561f..9b466c47f 100644
--- a/index.html
+++ b/index.html
@@ -316,13 +316,14 @@ <h3 class="callout-title">Prerequisites<a class="anchor" aria-label="anchor" hre
 folder as your working directory.</li>
 </ol><p>In the lesson, you will find out how to access the data files in this
 folder.</p>
-<div id="callout1" class="callout">
+<div id="where-to-type-commands-how-to-open-a-new-shell" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="where-to-type-commands-how-to-open-a-new-shell">Where to type commands: How to open a new
-shell<a class="anchor" aria-label="anchor" href="#where-to-type-commands-how-to-open-a-new-shell"></a></h3>
+<div id="where-to-type-commands-how-to-open-a-new-shell" class="callout-inner">
+<h3 class="callout-title">Where to type commands: How to open a new
+shell<a class="anchor" aria-label="anchor" href="#where-to-type-commands-how-to-open-a-new-shell"></a>
+</h3>
 <div class="callout-content">
 <p>The shell is a program that enables us to send commands to the
 computer and receive output. It is also referred to as the terminal or
@@ -343,7 +344,7 @@ <h3 class="callout-title" id="where-to-type-commands-how-to-open-a-new-shell">Wh
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Computers with Windows operating systems do not automatically have a
 Unix Shell program installed. In this lesson, we encourage you to use an
@@ -368,7 +369,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>For a Mac computer running macOS Mojave or earlier releases, the
 default Unix Shell is Bash. For a Mac computer running macOS Catalina or
@@ -394,7 +395,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The default Unix Shell for Linux operating systems is usually Bash.
 On most versions of Linux, it is accessible by running the <a href="https://help.gnome.org/users/gnome-terminal/stable/" class="external-link">Gnome
@@ -433,7 +434,7 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -455,8 +456,8 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
   "url": "https://swcarpentry.github.io/shell-novice/index.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/index.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 66c278f1e..147702847 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -600,7 +600,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -623,8 +623,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://swcarpentry.github.io/shell-novice/instructor-notes.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor-notes.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/01-intro.html b/instructor/01-intro.html
index d2b1ef869..16edd8ead 100644
--- a/instructor/01-intro.html
+++ b/instructor/01-intro.html
@@ -405,12 +405,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <pre class="output" tabindex="0"><code>Desktop     Downloads   Movies      Pictures
 Documents   Library     Music       Public</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="command-not-found" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="command-not-found">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a></h3>
+<div id="command-not-found" class="callout-inner">
+<h3 class="callout-title">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
+</h3>
 <div class="callout-content">
 <p>If the shell can’t find a program whose name is the command you
 typed, it will print an error message such as:</p>
@@ -520,7 +521,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -543,7 +544,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/01-intro.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-06-09",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/02-filedir.html b/instructor/02-filedir.html
index 70bd1ffb2..5952bdd39 100644
--- a/instructor/02-filedir.html
+++ b/instructor/02-filedir.html
@@ -320,7 +320,7 @@ <h3 class="card-title">Objectives</h3>
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Introducing and navigating the filesystem in the shell (covered in <a href="02-filedir.html">Navigating Files and Directories</a> section) can
 be confusing. You may have both terminal and GUI file explorer open side
@@ -357,12 +357,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Here, the computer’s response is <code>/Users/nelle</code>, which is
 Nelle’s <strong>home directory</strong>:</p>
-<div id="callout1" class="callout">
+<div id="home-directory-variation" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="home-directory-variation">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a></h3>
+<div id="home-directory-variation" class="callout-inner">
+<h3 class="callout-title">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
+</h3>
 <div class="callout-content">
 <p>The home directory path will look different on different operating
 systems. On Linux, it may look like <code>/home/nelle</code>, and on
@@ -401,12 +402,13 @@ <h3 class="callout-title" id="home-directory-variation">Home Directory Variation
 first part of its name. Similarly, we know that <code>/Users</code> is
 stored inside the root directory <code>/</code> because its name begins
 with <code>/</code>.</p>
-<div id="callout2" class="callout">
+<div id="slashes" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="slashes">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a></h3>
+<div id="slashes" class="callout-inner">
+<h3 class="callout-title">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
+</h3>
 <div class="callout-content">
 <p>Notice that there are two meanings for the <code>/</code> character.
 When it appears at the front of a file or directory name, it refers to
@@ -468,12 +470,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <strong>sub-directories</strong>. Any names in the output that don’t
 have a classification symbol are <strong>files</strong> in the current
 working directory.</p>
-<div id="callout3" class="callout">
+<div id="clearing-your-terminal" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="clearing-your-terminal">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a></h3>
+<div id="clearing-your-terminal" class="callout-inner">
+<h3 class="callout-title">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
+</h3>
 <div class="callout-content">
 <p>If your screen gets too cluttered, you can clear your terminal using
 the <code>clear</code> command. You can still access previous commands
@@ -503,12 +506,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" tabindex="-1"></a><span class="ex">$</span> man ls</span></code></pre>
 </div>
 <p>We’ll describe both ways next.</p>
-<div id="callout4" class="callout">
+<div id="help-for-built-in-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="help-for-built-in-commands">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a></h3>
+<div id="help-for-built-in-commands" class="callout-inner">
+<h3 class="callout-title">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
+</h3>
 <div class="callout-content">
 <p>Some commands are built in to the Bash shell, rather than existing as
 separate programs on the filesystem. One example is the <code>cd</code>
@@ -558,12 +562,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   -F, --classify             append indicator (one of */=&gt;@|) to entries
 ...        ...        ...</code></pre>
 </div>
-<div id="callout5" class="callout">
+<div id="when-to-use-short-or-long-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="when-to-use-short-or-long-options">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a></h3>
+<div id="when-to-use-short-or-long-options" class="callout-inner">
+<h3 class="callout-title">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
+</h3>
 <div class="callout-content">
 <p>When options exist as both short and long options:</p>
 <ul><li>Use the short option when typing commands directly into the shell to
@@ -573,12 +578,13 @@ <h3 class="callout-title" id="when-to-use-short-or-long-options">When to use sho
 </ul></div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="unsupported-command-line-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="unsupported-command-line-options">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a></h3>
+<div id="unsupported-command-line-options" class="callout-inner">
+<h3 class="callout-title">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
+</h3>
 <div class="callout-content">
 <p>If you try to use an option that is not supported, <code>ls</code>
 and other commands will usually print an error message similar to:</p>
@@ -617,12 +623,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <kbd>Shift</kbd>+<kbd>N</kbd> (for moving backward).</p>
 <p>To <strong>quit</strong> the <code>man</code> pages, press
 <kbd>Q</kbd>.</p>
-<div id="callout7" class="callout">
+<div id="manual-pages-on-the-web" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="manual-pages-on-the-web">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a></h3>
+<div id="manual-pages-on-the-web" class="callout-inner">
+<h3 class="callout-title">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
+</h3>
 <div class="callout-content">
 <p>Of course, there is a third way to access help for commands:
 searching the internet via your web browser. When using internet search,
@@ -657,7 +664,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Options<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The <code>-l</code> option makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -693,7 +700,7 @@ <h3 class="callout-title">Listing in Reverse Chronological Order<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>The most recently changed file is listed last when using
 <code>-rt</code>. This can be very useful for finding your most recent
@@ -870,12 +877,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>Note that in most command line tools, multiple options can be
 combined with a single <code>-</code> and no spaces between the options;
 <code>ls -F -a</code> is equivalent to <code>ls -Fa</code>.</p>
-<div id="callout8" class="callout">
+<div id="other-hidden-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-hidden-files">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a></h3>
+<div id="other-hidden-files" class="callout-inner">
+<h3 class="callout-title">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
+</h3>
 <div class="callout-content">
 <p>In addition to the hidden directories <code>..</code> and
 <code>.</code>, you may also see a file called
@@ -961,12 +969,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 <p>Run <code>pwd</code> and <code>ls -F</code> to ensure that we’re in
 the directory we expect.</p>
-<div id="callout9" class="callout">
+<div id="two-more-shortcuts" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-more-shortcuts">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a></h3>
+<div id="two-more-shortcuts" class="callout-inner">
+<h3 class="callout-title">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
+</h3>
 <div class="callout-content">
 <p>The shell interprets a tilde (<code>~</code>) character at the start
 of a path to mean “the current user’s home directory”. For example, if
@@ -1038,7 +1047,7 @@ <h3 class="callout-title">Absolute vs Relative Paths<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>.</code> stands for the current directory.</li>
 <li>No: <code>/</code> stands for the root directory.</li>
@@ -1079,7 +1088,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: there <em>is</em> a directory <code>backup</code> in
 <code>/Users</code>.</li>
@@ -1121,7 +1130,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>No: <code>pwd</code> is not the name of a directory.</li>
 <li>Yes: <code>ls</code> without directory argument lists files and
@@ -1340,7 +1349,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1363,7 +1372,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/02-filedir.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-03-08",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/03-create.html b/instructor/03-create.html
index 423067934..ed21e7a85 100644
--- a/instructor/03-create.html
+++ b/instructor/03-create.html
@@ -404,12 +404,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 
 ../project/results:</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="two-ways-of-doing-the-same-thing" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a></h3>
+<div id="two-ways-of-doing-the-same-thing" class="callout-inner">
+<h3 class="callout-title">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
+</h3>
 <div class="callout-content">
 <p>Using the shell to create a directory is no different than using a
 file explorer. If you open the current directory using your operating
@@ -420,12 +421,13 @@ <h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doin
 </div>
 </div>
 </div>
-<div id="callout2" class="callout">
+<div id="good-names-for-files-and-directories" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="good-names-for-files-and-directories">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a></h3>
+<div id="good-names-for-files-and-directories" class="callout-inner">
+<h3 class="callout-title">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
+</h3>
 <div class="callout-content">
 <p>Complicated names of files and directories can make your life painful
 when working on the command line. Here we provide a few useful tips for
@@ -483,12 +485,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" tabindex="-1"></a><span class="ex">$</span> cd thesis</span>
 <span id="cb12-2"><a href="#cb12-2" tabindex="-1"></a><span class="ex">$</span> nano draft.txt</span></code></pre>
 </div>
-<div id="callout3" class="callout">
+<div id="which-editor" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a></h3>
+<div id="which-editor" class="callout-inner">
+<h3 class="callout-title">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
+</h3>
 <div class="callout-content">
 <p>When we say, ‘<code>nano</code> is a text editor’ we really do mean
 ‘text’. It can only work with plain character data, not tables, images,
@@ -520,12 +523,13 @@ <h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-
 to accept the suggested default of <code>draft.txt</code>.</p>
 <p>Once our file is saved, we can use <kbd>Ctrl</kbd>+<kbd>X</kbd> to
 quit the editor and return to the shell.</p>
-<div id="callout4" class="callout">
+<div id="control-ctrl-or-key" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="control-ctrl-or-key">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a></h3>
+<div id="control-ctrl-or-key" class="callout-inner">
+<h3 class="callout-title">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
+</h3>
 <div class="callout-content">
 <p>The Control key is also called the ‘Ctrl’ key. There are various ways
 in which using the Control key may be described. For example, you may
@@ -626,12 +630,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 </div>
-<div id="callout5" class="callout">
+<div id="whats-in-a-name" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="whats-in-a-name">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a></h3>
+<div id="whats-in-a-name" class="callout-inner">
+<h3 class="callout-title">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
+</h3>
 <div class="callout-content">
 <p>You may have noticed that all of Nelle’s files are named ‘something
 dot something’, and in this part of the lesson, we always used the
@@ -994,12 +999,13 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </h3>
 <pre class="error" tabindex="0"><code>ls: cannot access 'quotes.txt': No such file or directory</code></pre>
 </div>
-<div id="callout6" class="callout">
+<div id="deleting-is-forever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="deleting-is-forever">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a></h3>
+<div id="deleting-is-forever" class="callout-inner">
+<h3 class="callout-title">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
+</h3>
 <div class="callout-content">
 <p>The Unix shell doesn’t have a trash bin that we can recover deleted
 files from (though most graphical interfaces to Unix do). Instead, when
@@ -1142,12 +1148,13 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </div>
 <div class="section level3">
 <h3 id="using-wildcards-for-accessing-multiple-files-at-once">Using wildcards for accessing multiple files at once<a class="anchor" aria-label="anchor" href="#using-wildcards-for-accessing-multiple-files-at-once"></a></h3>
-<div id="callout7" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a></h3>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+</h3>
 <div class="callout-content">
 <p><code>*</code> is a <strong>wildcard</strong>, which represents zero
 or more other characters. Let’s consider the
@@ -1570,7 +1577,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1593,7 +1600,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/03-create.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-03-08",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/04-pipefilter.html b/instructor/04-pipefilter.html
index f53267108..97d19ad58 100644
--- a/instructor/04-pipefilter.html
+++ b/instructor/04-pipefilter.html
@@ -389,12 +389,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>The <code>-m</code> and <code>-w</code> options can also be used with
 the <code>wc</code> command to show only the number of characters or the
 number of words, respectively.</p>
-<div id="callout1" class="callout">
+<div id="why-isnt-it-doing-anything" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="why-isnt-it-doing-anything">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a></h3>
+<div id="why-isnt-it-doing-anything" class="callout-inner">
+<h3 class="callout-title">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
+</h3>
 <div class="callout-content">
 <p>What happens if a command is supposed to process a file, but we don’t
 give it a filename? For example, what if we type:</p>
@@ -466,12 +467,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   15  propane.pdb
  107  total</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="output-page-by-page" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="output-page-by-page">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a></h3>
+<div id="output-page-by-page" class="callout-inner">
+<h3 class="callout-title">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
+</h3>
 <div class="callout-content">
 <p>We’ll continue to use <code>cat</code> in this lesson, for
 convenience and consistency, but it has the disadvantage that it always
@@ -533,7 +535,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>-n</code> option specifies a numerical rather than an
 alphanumerical sort.</p>
@@ -583,12 +585,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 20, and so on. Since <code>sorted-lengths.txt</code> contains the
 lengths of our files ordered from least to greatest, the output of
 <code>head</code> must be the file with the fewest lines.</p>
-<div id="callout3" class="callout">
+<div id="redirecting-to-the-same-file" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="redirecting-to-the-same-file">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a></h3>
+<div id="redirecting-to-the-same-file" class="callout-inner">
+<h3 class="callout-title">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
+</h3>
 <div class="callout-content">
 <p>It’s a very bad idea to try redirecting the output of a command that
 operates on a file to the same file. For example:</p>
@@ -648,7 +651,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>In the first example with <code>&gt;</code>, the string ‘hello’ is
 written to <code>testfile01.txt</code>, but the file gets overwritten
@@ -699,7 +702,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Option 3 is correct. For option 1 to be correct we would only run the
 <code>head</code> command. For option 2 to be correct we would only run
@@ -801,7 +804,7 @@ <h3 class="callout-title">Piping Commands Together<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Option 4 is the solution. The pipe character <code>|</code> is used
 to connect the output from one command to the input of another.
@@ -866,7 +869,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>head</code> command extracts the first 5 lines from
 <code>animals.csv</code>. Then, the last 3 lines are extracted from the
@@ -930,7 +933,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -979,7 +982,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Option 4. is the correct answer. If you have difficulty understanding
 why, try running the commands, or sub-sections of the pipelines (make
@@ -1094,7 +1097,7 @@ <h3 class="callout-title">Removing Unneeded Files<a class="anchor" aria-label="a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>This would remove <code>.txt</code> files with one-character
 names</li>
@@ -1179,7 +1182,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1202,7 +1205,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/04-pipefilter.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2024-01-17",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/05-loop.html b/instructor/05-loop.html
index 8ea6afb84..5a43ae000 100644
--- a/instructor/05-loop.html
+++ b/instructor/05-loop.html
@@ -369,12 +369,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 unicorn.dat
 CLASSIFICATION: equus monoceros</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="follow-the-prompt" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a></h3>
+<div id="follow-the-prompt" class="callout-inner">
+<h3 class="callout-title">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
+</h3>
 <div class="callout-content">
 <p>The shell prompt changes from <code>$</code> to <code>&gt;</code> and
 back again as we were typing in our loop. The second prompt,
@@ -414,12 +415,13 @@ <h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anch
 runs the <code>head</code> command on that file, and <code>tail</code>
 on the output of that. Since the list was only three items, the shell
 exits the <code>for</code> loop.</p>
-<div id="callout2" class="callout">
+<div id="same-symbols-different-meanings" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="same-symbols-different-meanings">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a></h3>
+<div id="same-symbols-different-meanings" class="callout-inner">
+<h3 class="callout-title">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
+</h3>
 <div class="callout-content">
 <p>Here we see <code>&gt;</code> being used as a shell prompt, whereas
 <code>&gt;</code> is also used to redirect output. Similarly,
@@ -828,12 +830,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <code>head</code> and <code>tail</code> combination selects lines 81-100
 from whatever file is being processed (assuming the file has at least
 100 lines).</p>
-<div id="callout3" class="callout">
+<div id="spaces-in-names" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="spaces-in-names">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a></h3>
+<div id="spaces-in-names" class="callout-inner">
+<h3 class="callout-title">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
+</h3>
 <div class="callout-content">
 <p>Spaces are used to separate the elements of the list that we are
 going to loop over. If one of those elements contains a space character,
@@ -1034,12 +1037,13 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb40-1"><a href="#cb40-1" tabindex="-1"></a><span class="ex">$</span> for datafile in NENE<span class="pp">*</span>A.txt NENE<span class="pp">*</span>B.txt<span class="kw">;</span> <span class="cf">do</span> <span class="bu">echo</span> <span class="va">$datafile</span><span class="kw">;</span></span>
 <span id="cb40-2"><a href="#cb40-2" tabindex="-1"></a><span class="fu">bash</span> goostats.sh <span class="va">$datafile</span> stats-<span class="va">$datafile</span><span class="kw">;</span> <span class="cf">done</span></span></code></pre>
 </div>
-<div id="callout4" class="callout">
+<div id="beginning-and-end" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="beginning-and-end">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a></h3>
+<div id="beginning-and-end" class="callout-inner">
+<h3 class="callout-title">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
+</h3>
 <div class="callout-content">
 <p>We can move to the beginning of a line in the shell by typing
 <kbd>Ctrl</kbd>+<kbd>A</kbd> and to the end using
@@ -1063,13 +1067,14 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <code>cat stats-NENE01729B.txt</code> to examine one of the output
 files. It looks good, so she decides to get some coffee and catch up on
 her reading.</p>
-<div id="callout5" class="callout">
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="those-who-know-history-can-choose-to-repeat-it">Those Who Know History Can Choose to Repeat
-It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a></h3>
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout-inner">
+<h3 class="callout-title">Those Who Know History Can Choose to Repeat
+It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a>
+</h3>
 <div class="callout-content">
 <p>Another way to repeat previous work is to use the
 <code>history</code> command to get a list of the last few hundred
@@ -1096,12 +1101,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="other-history-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-history-commands">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a></h3>
+<div id="other-history-commands" class="callout-inner">
+<h3 class="callout-title">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
+</h3>
 <div class="callout-content">
 <p>There are a number of other shortcut commands for getting at the
 history.</p>
@@ -1299,7 +1305,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1322,7 +1328,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/05-loop.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-11-10",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/06-script.html b/instructor/06-script.html
index 9ea536fc6..909d7a09c 100644
--- a/instructor/06-script.html
+++ b/instructor/06-script.html
@@ -364,12 +364,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Sure enough, our script’s output is exactly what we would get if we
 ran that pipeline directly.</p>
-<div id="callout1" class="callout">
+<div id="text-vs.-whatever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="text-vs--whatever">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs--whatever"></a></h3>
+<div id="text-vs.-whatever" class="callout-inner">
+<h3 class="callout-title">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs.-whatever"></a>
+</h3>
 <div class="callout-content">
 <p>We usually call programs like Microsoft Word or LibreOffice Writer
 “text editors”, but we need to be a bit more careful when it comes to
@@ -429,12 +430,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 ATOM     12  H           1      -0.048  -1.362  -0.205  1.00  0.00
 ATOM     13  H           1      -1.183   0.500  -1.412  1.00  0.00</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="double-quotes-around-arguments" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="double-quotes-around-arguments">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a></h3>
+<div id="double-quotes-around-arguments" class="callout-inner">
+<h3 class="callout-title">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
+</h3>
 <div class="callout-content">
 <p>For the same reason that we put the loop variable inside
 double-quotes, in case the filename happens to contain any spaces, we
@@ -1051,7 +1053,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1074,7 +1076,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/06-script.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-08-05",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/07-find.html b/instructor/07-find.html
index 353c37254..096ae219f 100644
--- a/instructor/07-find.html
+++ b/instructor/07-find.html
@@ -561,12 +561,13 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout1" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a></h3>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+</h3>
 <div class="callout-content">
 <p><code>grep</code>‘s real power doesn’t come from its options, though;
 it comes from the fact that patterns can include wildcards. (The
@@ -874,12 +875,13 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <span><span class="va">.</span><span class="op">/</span><span class="va">writing</span><span class="op">/</span><span class="va">haiku.txt</span></span>
 <span><span class="va">.</span><span class="op">/</span><span class="va">numbers.txt</span></span></code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="listing-vs.-finding" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="listing-vs--finding">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs--finding"></a></h3>
+<div id="listing-vs.-finding" class="callout-inner">
+<h3 class="callout-title">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs.-finding"></a>
+</h3>
 <div class="callout-content">
 <p><code>ls</code> and <code>find</code> can be made to do similar
 things given the right options, but under normal circumstances,
@@ -982,12 +984,13 @@ <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout3" class="callout">
+<div id="binary-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="binary-files">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a></h3>
+<div id="binary-files" class="callout-inner">
+<h3 class="callout-title">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
+</h3>
 <div class="callout-content">
 <p>We have focused exclusively on finding patterns in text files. What
 if your data is stored as images, in databases, or in some other
@@ -1116,7 +1119,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -1139,7 +1142,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/07-find.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-11-09",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index f645d1900..7c7796a69 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -297,7 +297,7 @@ <h1>Page not found</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -319,8 +319,8 @@ <h1>Page not found</h1>
   "url": "https://swcarpentry.github.io/shell-novice/instructor/404.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/404.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 538462a18..661309590 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -316,7 +316,7 @@ <h1>Contributor Code of Conduct</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -339,7 +339,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 16b16afd1..1e1c8b600 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -367,7 +367,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -390,7 +390,7 @@ <h1>Licenses</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/LICENSE.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 188b5d5a3..d86449c7a 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -451,12 +451,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <pre class="output" tabindex="0"><code>Desktop     Downloads   Movies      Pictures
 Documents   Library     Music       Public</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="command-not-found" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="command-not-found">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
+<div id="command-not-found" class="callout-inner">
+<h3 class="callout-title">Command not found<a class="anchor" aria-label="anchor" href="#command-not-found"></a>
 </h3>
 <div class="callout-content">
 <p>If the shell can’t find a program whose name is the command you
@@ -587,7 +587,7 @@ <h3 class="card-title">Objectives</h3>
   <h3 class="accordion-header" id="headingInstructor1">
 <div class="note-square"><i aria-hidden="true" class="callout-icon" data-feather="edit-2"></i></div>Instructor Note</h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>Introducing and navigating the filesystem in the shell (covered in <a href="02-filedir.html">Navigating Files and Directories</a> section) can
 be confusing. You may have both terminal and GUI file explorer open side
@@ -624,12 +624,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Here, the computer’s response is <code>/Users/nelle</code>, which is
 Nelle’s <strong>home directory</strong>:</p>
-<div id="callout1" class="callout">
+<div id="home-directory-variation" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="home-directory-variation">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
+<div id="home-directory-variation" class="callout-inner">
+<h3 class="callout-title">Home Directory Variation<a class="anchor" aria-label="anchor" href="#home-directory-variation"></a>
 </h3>
 <div class="callout-content">
 <p>The home directory path will look different on different operating
@@ -669,12 +669,12 @@ <h3 class="callout-title" id="home-directory-variation">Home Directory Variation
 first part of its name. Similarly, we know that <code>/Users</code> is
 stored inside the root directory <code>/</code> because its name begins
 with <code>/</code>.</p>
-<div id="callout2" class="callout">
+<div id="slashes" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="slashes">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
+<div id="slashes" class="callout-inner">
+<h3 class="callout-title">Slashes<a class="anchor" aria-label="anchor" href="#slashes"></a>
 </h3>
 <div class="callout-content">
 <p>Notice that there are two meanings for the <code>/</code> character.
@@ -739,12 +739,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <strong>sub-directories</strong>. Any names in the output that don’t
 have a classification symbol are <strong>files</strong> in the current
 working directory.</p>
-<div id="callout3" class="callout">
+<div id="clearing-your-terminal" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="clearing-your-terminal">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
+<div id="clearing-your-terminal" class="callout-inner">
+<h3 class="callout-title">Clearing your terminal<a class="anchor" aria-label="anchor" href="#clearing-your-terminal"></a>
 </h3>
 <div class="callout-content">
 <p>If your screen gets too cluttered, you can clear your terminal using
@@ -780,12 +780,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" tabindex="-1"></a><span class="ex">$</span> man ls</span></code></pre>
 </div>
 <p>We’ll describe both ways next.</p>
-<div id="callout4" class="callout">
+<div id="help-for-built-in-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="help-for-built-in-commands">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
+<div id="help-for-built-in-commands" class="callout-inner">
+<h3 class="callout-title">Help for built-in commands<a class="anchor" aria-label="anchor" href="#help-for-built-in-commands"></a>
 </h3>
 <div class="callout-content">
 <p>Some commands are built in to the Bash shell, rather than existing as
@@ -837,12 +837,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   -F, --classify             append indicator (one of */=&gt;@|) to entries
 ...        ...        ...</code></pre>
 </div>
-<div id="callout5" class="callout">
+<div id="when-to-use-short-or-long-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="when-to-use-short-or-long-options">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
+<div id="when-to-use-short-or-long-options" class="callout-inner">
+<h3 class="callout-title">When to use short or long options<a class="anchor" aria-label="anchor" href="#when-to-use-short-or-long-options"></a>
 </h3>
 <div class="callout-content">
 <p>When options exist as both short and long options:</p>
@@ -855,12 +855,12 @@ <h3 class="callout-title" id="when-to-use-short-or-long-options">When to use sho
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="unsupported-command-line-options" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="unsupported-command-line-options">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
+<div id="unsupported-command-line-options" class="callout-inner">
+<h3 class="callout-title">Unsupported command-line options<a class="anchor" aria-label="anchor" href="#unsupported-command-line-options"></a>
 </h3>
 <div class="callout-content">
 <p>If you try to use an option that is not supported, <code>ls</code>
@@ -901,12 +901,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <kbd>Shift</kbd>+<kbd>N</kbd> (for moving backward).</p>
 <p>To <strong>quit</strong> the <code>man</code> pages, press
 <kbd>Q</kbd>.</p>
-<div id="callout7" class="callout">
+<div id="manual-pages-on-the-web" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="manual-pages-on-the-web">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
+<div id="manual-pages-on-the-web" class="callout-inner">
+<h3 class="callout-title">Manual pages on the web<a class="anchor" aria-label="anchor" href="#manual-pages-on-the-web"></a>
 </h3>
 <div class="callout-content">
 <p>Of course, there is a third way to access help for commands:
@@ -942,7 +942,7 @@ <h3 class="callout-title">Exploring More<code>ls</code>Options<a class="anchor"
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The <code>-l</code> option makes <code>ls</code> use a
 <strong>l</strong>ong listing format, showing not only the
@@ -978,7 +978,7 @@ <h3 class="callout-title">Listing in Reverse Chronological Order<a class="anchor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>The most recently changed file is listed last when using
 <code>-rt</code>. This can be very useful for finding your most recent
@@ -1156,12 +1156,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>Note that in most command line tools, multiple options can be
 combined with a single <code>-</code> and no spaces between the options;
 <code>ls -F -a</code> is equivalent to <code>ls -Fa</code>.</p>
-<div id="callout8" class="callout">
+<div id="other-hidden-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-hidden-files">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
+<div id="other-hidden-files" class="callout-inner">
+<h3 class="callout-title">Other Hidden Files<a class="anchor" aria-label="anchor" href="#other-hidden-files"></a>
 </h3>
 <div class="callout-content">
 <p>In addition to the hidden directories <code>..</code> and
@@ -1248,12 +1248,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 <p>Run <code>pwd</code> and <code>ls -F</code> to ensure that we’re in
 the directory we expect.</p>
-<div id="callout9" class="callout">
+<div id="two-more-shortcuts" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-more-shortcuts">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
+<div id="two-more-shortcuts" class="callout-inner">
+<h3 class="callout-title">Two More Shortcuts<a class="anchor" aria-label="anchor" href="#two-more-shortcuts"></a>
 </h3>
 <div class="callout-content">
 <p>The shell interprets a tilde (<code>~</code>) character at the start
@@ -1329,7 +1329,7 @@ <h3 class="callout-title">Absolute vs Relative Paths<a class="anchor" aria-label
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>.</code> stands for the current directory.</li>
@@ -1375,7 +1375,7 @@ <h3 class="callout-title">Relative Path Resolution<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: there <em>is</em> a directory <code>backup</code> in
@@ -1421,7 +1421,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>No: <code>pwd</code> is not the name of a directory.</li>
@@ -1744,12 +1744,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 
 ../project/results:</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="two-ways-of-doing-the-same-thing" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
+<div id="two-ways-of-doing-the-same-thing" class="callout-inner">
+<h3 class="callout-title">Two ways of doing the same thing<a class="anchor" aria-label="anchor" href="#two-ways-of-doing-the-same-thing"></a>
 </h3>
 <div class="callout-content">
 <p>Using the shell to create a directory is no different than using a
@@ -1761,12 +1761,12 @@ <h3 class="callout-title" id="two-ways-of-doing-the-same-thing">Two ways of doin
 </div>
 </div>
 </div>
-<div id="callout2" class="callout">
+<div id="good-names-for-files-and-directories" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="good-names-for-files-and-directories">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
+<div id="good-names-for-files-and-directories" class="callout-inner">
+<h3 class="callout-title">Good names for files and directories<a class="anchor" aria-label="anchor" href="#good-names-for-files-and-directories"></a>
 </h3>
 <div class="callout-content">
 <p>Complicated names of files and directories can make your life painful
@@ -1832,12 +1832,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" tabindex="-1"></a><span class="ex">$</span> cd thesis</span>
 <span id="cb12-2"><a href="#cb12-2" tabindex="-1"></a><span class="ex">$</span> nano draft.txt</span></code></pre>
 </div>
-<div id="callout3" class="callout">
+<div id="which-editor" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
+<div id="which-editor" class="callout-inner">
+<h3 class="callout-title">Which Editor?<a class="anchor" aria-label="anchor" href="#which-editor"></a>
 </h3>
 <div class="callout-content">
 <p>When we say, ‘<code>nano</code> is a text editor’ we really do mean
@@ -1870,12 +1870,12 @@ <h3 class="callout-title" id="which-editor">Which Editor?<a class="anchor" aria-
 to accept the suggested default of <code>draft.txt</code>.</p>
 <p>Once our file is saved, we can use <kbd>Ctrl</kbd>+<kbd>X</kbd> to
 quit the editor and return to the shell.</p>
-<div id="callout4" class="callout">
+<div id="control-ctrl-or-key" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="control-ctrl-or-key">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
+<div id="control-ctrl-or-key" class="callout-inner">
+<h3 class="callout-title">Control, Ctrl, or ^ Key<a class="anchor" aria-label="anchor" href="#control-ctrl-or-key"></a>
 </h3>
 <div class="callout-content">
 <p>The Control key is also called the ‘Ctrl’ key. There are various ways
@@ -1983,12 +1983,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 </div>
-<div id="callout5" class="callout">
+<div id="whats-in-a-name" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="whats-in-a-name">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
+<div id="whats-in-a-name" class="callout-inner">
+<h3 class="callout-title">What’s In A Name?<a class="anchor" aria-label="anchor" href="#whats-in-a-name"></a>
 </h3>
 <div class="callout-content">
 <p>You may have noticed that all of Nelle’s files are named ‘something
@@ -2363,12 +2363,12 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 </h3>
 <pre class="error" tabindex="0"><code>ls: cannot access 'quotes.txt': No such file or directory</code></pre>
 </div>
-<div id="callout6" class="callout">
+<div id="deleting-is-forever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="deleting-is-forever">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
+<div id="deleting-is-forever" class="callout-inner">
+<h3 class="callout-title">Deleting Is Forever<a class="anchor" aria-label="anchor" href="#deleting-is-forever"></a>
 </h3>
 <div class="callout-content">
 <p>The Unix shell doesn’t have a trash bin that we can recover deleted
@@ -2514,12 +2514,12 @@ <h3 class="code-label">ERROR<i aria-hidden="true" data-feather="chevron-left"></
 <div class="section level3">
 <h3 id="using-wildcards-for-accessing-multiple-files-at-once">Using wildcards for accessing multiple files at once<a class="anchor" aria-label="anchor" href="#using-wildcards-for-accessing-multiple-files-at-once"></a>
 </h3>
-<div id="callout7" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
 </h3>
 <div class="callout-content">
 <p><code>*</code> is a <strong>wildcard</strong>, which represents zero
@@ -3026,12 +3026,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <p>The <code>-m</code> and <code>-w</code> options can also be used with
 the <code>wc</code> command to show only the number of characters or the
 number of words, respectively.</p>
-<div id="callout1" class="callout">
+<div id="why-isnt-it-doing-anything" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="why-isnt-it-doing-anything">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
+<div id="why-isnt-it-doing-anything" class="callout-inner">
+<h3 class="callout-title">Why Isn’t It Doing Anything?<a class="anchor" aria-label="anchor" href="#why-isnt-it-doing-anything"></a>
 </h3>
 <div class="callout-content">
 <p>What happens if a command is supposed to process a file, but we don’t
@@ -3105,12 +3105,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
   15  propane.pdb
  107  total</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="output-page-by-page" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="output-page-by-page">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
+<div id="output-page-by-page" class="callout-inner">
+<h3 class="callout-title">Output Page by Page<a class="anchor" aria-label="anchor" href="#output-page-by-page"></a>
 </h3>
 <div class="callout-content">
 <p>We’ll continue to use <code>cat</code> in this lesson, for
@@ -3174,7 +3174,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>-n</code> option specifies a numerical rather than an
 alphanumerical sort.</p>
@@ -3224,12 +3224,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 20, and so on. Since <code>sorted-lengths.txt</code> contains the
 lengths of our files ordered from least to greatest, the output of
 <code>head</code> must be the file with the fewest lines.</p>
-<div id="callout3" class="callout">
+<div id="redirecting-to-the-same-file" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="redirecting-to-the-same-file">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
+<div id="redirecting-to-the-same-file" class="callout-inner">
+<h3 class="callout-title">Redirecting to the same file<a class="anchor" aria-label="anchor" href="#redirecting-to-the-same-file"></a>
 </h3>
 <div class="callout-content">
 <p>It’s a very bad idea to try redirecting the output of a command that
@@ -3290,7 +3290,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">Show me the solution</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>In the first example with <code>&gt;</code>, the string ‘hello’ is
 written to <code>testfile01.txt</code>, but the file gets overwritten
@@ -3343,7 +3343,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Show me the solution</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Option 3 is correct. For option 1 to be correct we would only run the
 <code>head</code> command. For option 2 to be correct we would only run
@@ -3449,7 +3449,7 @@ <h3 class="callout-title">Piping Commands Together<a class="anchor" aria-label="
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Option 4 is the solution. The pipe character <code>|</code> is used
 to connect the output from one command to the input of another.
@@ -3515,7 +3515,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5">Show me the solution</h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>The <code>head</code> command extracts the first 5 lines from
 <code>animals.csv</code>. Then, the last 3 lines are extracted from the
@@ -3579,7 +3579,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6">Show me the solution</h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb39">
 <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3630,7 +3630,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7">Show me the solution</h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Option 4. is the correct answer. If you have difficulty understanding
 why, try running the commands, or sub-sections of the pipelines (make
@@ -3748,7 +3748,7 @@ <h3 class="callout-title">Removing Unneeded Files<a class="anchor" aria-label="a
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8">Show me the solution</h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>This would remove <code>.txt</code> files with one-character
@@ -3901,12 +3901,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 unicorn.dat
 CLASSIFICATION: equus monoceros</code></pre>
 </div>
-<div id="callout1" class="callout">
+<div id="follow-the-prompt" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
+<div id="follow-the-prompt" class="callout-inner">
+<h3 class="callout-title">Follow the Prompt<a class="anchor" aria-label="anchor" href="#follow-the-prompt"></a>
 </h3>
 <div class="callout-content">
 <p>The shell prompt changes from <code>$</code> to <code>&gt;</code> and
@@ -3947,12 +3947,12 @@ <h3 class="callout-title" id="follow-the-prompt">Follow the Prompt<a class="anch
 runs the <code>head</code> command on that file, and <code>tail</code>
 on the output of that. Since the list was only three items, the shell
 exits the <code>for</code> loop.</p>
-<div id="callout2" class="callout">
+<div id="same-symbols-different-meanings" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="same-symbols-different-meanings">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
+<div id="same-symbols-different-meanings" class="callout-inner">
+<h3 class="callout-title">Same Symbols, Different Meanings<a class="anchor" aria-label="anchor" href="#same-symbols-different-meanings"></a>
 </h3>
 <div class="callout-content">
 <p>Here we see <code>&gt;</code> being used as a shell prompt, whereas
@@ -4372,12 +4372,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <code>head</code> and <code>tail</code> combination selects lines 81-100
 from whatever file is being processed (assuming the file has at least
 100 lines).</p>
-<div id="callout3" class="callout">
+<div id="spaces-in-names" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="spaces-in-names">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
+<div id="spaces-in-names" class="callout-inner">
+<h3 class="callout-title">Spaces in Names<a class="anchor" aria-label="anchor" href="#spaces-in-names"></a>
 </h3>
 <div class="callout-content">
 <p>Spaces are used to separate the elements of the list that we are
@@ -4582,12 +4582,12 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 <pre class="sourceCode bash" tabindex="0"><code class="sourceCode bash"><span id="cb40-1"><a href="#cb40-1" tabindex="-1"></a><span class="ex">$</span> for datafile in NENE<span class="pp">*</span>A.txt NENE<span class="pp">*</span>B.txt<span class="kw">;</span> <span class="cf">do</span> <span class="bu">echo</span> <span class="va">$datafile</span><span class="kw">;</span></span>
 <span id="cb40-2"><a href="#cb40-2" tabindex="-1"></a><span class="fu">bash</span> goostats.sh <span class="va">$datafile</span> stats-<span class="va">$datafile</span><span class="kw">;</span> <span class="cf">done</span></span></code></pre>
 </div>
-<div id="callout4" class="callout">
+<div id="beginning-and-end" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="beginning-and-end">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
+<div id="beginning-and-end" class="callout-inner">
+<h3 class="callout-title">Beginning and End<a class="anchor" aria-label="anchor" href="#beginning-and-end"></a>
 </h3>
 <div class="callout-content">
 <p>We can move to the beginning of a line in the shell by typing
@@ -4612,12 +4612,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <code>cat stats-NENE01729B.txt</code> to examine one of the output
 files. It looks good, so she decides to get some coffee and catch up on
 her reading.</p>
-<div id="callout5" class="callout">
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="those-who-know-history-can-choose-to-repeat-it">Those Who Know History Can Choose to Repeat
+<div id="those-who-know-history-can-choose-to-repeat-it" class="callout-inner">
+<h3 class="callout-title">Those Who Know History Can Choose to Repeat
 It<a class="anchor" aria-label="anchor" href="#those-who-know-history-can-choose-to-repeat-it"></a>
 </h3>
 <div class="callout-content">
@@ -4646,12 +4646,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 </div>
 </div>
-<div id="callout6" class="callout">
+<div id="other-history-commands" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="other-history-commands">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
+<div id="other-history-commands" class="callout-inner">
+<h3 class="callout-title">Other History Commands<a class="anchor" aria-label="anchor" href="#other-history-commands"></a>
 </h3>
 <div class="callout-content">
 <p>There are a number of other shortcut commands for getting at the
@@ -4913,12 +4913,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </div>
 <p>Sure enough, our script’s output is exactly what we would get if we
 ran that pipeline directly.</p>
-<div id="callout1" class="callout">
+<div id="text-vs.-whatever" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="text-vs--whatever">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs--whatever"></a>
+<div id="text-vs.-whatever" class="callout-inner">
+<h3 class="callout-title">Text vs. Whatever<a class="anchor" aria-label="anchor" href="#text-vs.-whatever"></a>
 </h3>
 <div class="callout-content">
 <p>We usually call programs like Microsoft Word or LibreOffice Writer
@@ -4979,12 +4979,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 ATOM     12  H           1      -0.048  -1.362  -0.205  1.00  0.00
 ATOM     13  H           1      -1.183   0.500  -1.412  1.00  0.00</code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="double-quotes-around-arguments" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="double-quotes-around-arguments">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
+<div id="double-quotes-around-arguments" class="callout-inner">
+<h3 class="callout-title">Double-Quotes Around Arguments<a class="anchor" aria-label="anchor" href="#double-quotes-around-arguments"></a>
 </h3>
 <div class="callout-content">
 <p>For the same reason that we put the loop variable inside
@@ -5872,12 +5872,12 @@ <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout1" class="callout">
+<div id="wildcards" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="wildcards">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
+<div id="wildcards" class="callout-inner">
+<h3 class="callout-title">Wildcards<a class="anchor" aria-label="anchor" href="#wildcards"></a>
 </h3>
 <div class="callout-content">
 <p><code>grep</code>‘s real power doesn’t come from its options, though;
@@ -6186,12 +6186,12 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <span><span class="va">.</span><span class="op">/</span><span class="va">writing</span><span class="op">/</span><span class="va">haiku.txt</span></span>
 <span><span class="va">.</span><span class="op">/</span><span class="va">numbers.txt</span></span></code></pre>
 </div>
-<div id="callout2" class="callout">
+<div id="listing-vs.-finding" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="listing-vs--finding">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs--finding"></a>
+<div id="listing-vs.-finding" class="callout-inner">
+<h3 class="callout-title">Listing vs. Finding<a class="anchor" aria-label="anchor" href="#listing-vs.-finding"></a>
 </h3>
 <div class="callout-content">
 <p><code>ls</code> and <code>find</code> can be made to do similar
@@ -6297,12 +6297,12 @@ <h4 class="accordion-header" id="headingSolution4">Show me the solution</h4>
 </div>
 </div>
 </div>
-<div id="callout3" class="callout">
+<div id="binary-files" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="binary-files">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
+<div id="binary-files" class="callout-inner">
+<h3 class="callout-title">Binary Files<a class="anchor" aria-label="anchor" href="#binary-files"></a>
 </h3>
 <div class="callout-content">
 <p>We have focused exclusively on finding patterns in text files. What
@@ -6421,7 +6421,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -6444,8 +6444,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://swcarpentry.github.io/shell-novice/instructor/aio.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/aio.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 480d84249..4f157f916 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -368,7 +368,7 @@ <h1>Discussion</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -391,7 +391,7 @@ <h1>Discussion</h1>
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/discuss.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-05-02",
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+  "datePublished": "2024-03-19"
 }
 
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diff --git a/instructor/images.html b/instructor/images.html
index b628ba137..ab1145669 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -369,7 +369,7 @@ <h3 id="05-loop-figure-1">Figure 1</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -392,8 +392,8 @@ <h3 id="05-loop-figure-1">Figure 1</h3>
   "url": "https://swcarpentry.github.io/shell-novice/instructor/images.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/images.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 1956b728d..94570cc18 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -385,13 +385,14 @@ <h3 class="callout-title">Prerequisites<a class="anchor" aria-label="anchor" hre
 folder as your working directory.</li>
 </ol><p>In the lesson, you will find out how to access the data files in this
 folder.</p>
-<div id="callout1" class="callout">
+<div id="where-to-type-commands-how-to-open-a-new-shell" class="callout">
 <div class="callout-square">
 <i class="callout-icon" data-feather="bell"></i>
 </div>
-<div class="section level3 callout-title callout-inner">
-<h3 class="callout-title" id="where-to-type-commands-how-to-open-a-new-shell">Where to type commands: How to open a new
-shell<a class="anchor" aria-label="anchor" href="#where-to-type-commands-how-to-open-a-new-shell"></a></h3>
+<div id="where-to-type-commands-how-to-open-a-new-shell" class="callout-inner">
+<h3 class="callout-title">Where to type commands: How to open a new
+shell<a class="anchor" aria-label="anchor" href="#where-to-type-commands-how-to-open-a-new-shell"></a>
+</h3>
 <div class="callout-content">
 <p>The shell is a program that enables us to send commands to the
 computer and receive output. It is also referred to as the terminal or
@@ -412,7 +413,7 @@ <h3 class="callout-title" id="where-to-type-commands-how-to-open-a-new-shell">Wh
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Computers with Windows operating systems do not automatically have a
 Unix Shell program installed. In this lesson, we encourage you to use an
@@ -437,7 +438,7 @@ <h4 class="accordion-header" id="headingSolution1">Windows</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>For a Mac computer running macOS Mojave or earlier releases, the
 default Unix Shell is Bash. For a Mac computer running macOS Catalina or
@@ -463,7 +464,7 @@ <h4 class="accordion-header" id="headingSolution2">MacOS</h4>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3">Linux</h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The default Unix Shell for Linux operating systems is usually Bash.
 On most versions of Linux, it is accessible by running the <a href="https://help.gnome.org/users/gnome-terminal/stable/" class="external-link">Gnome
@@ -502,7 +503,7 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -524,8 +525,8 @@ <h4 class="accordion-header" id="headingSolution3">Linux</h4>
   "url": "https://swcarpentry.github.io/shell-novice/instructor/index.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/index.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 67c2504da..d2c38dd30 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -629,7 +629,7 @@ <h3 id="03-create-headingInstructor1">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -652,8 +652,8 @@ <h3 id="03-create-headingInstructor1">
   "url": "https://swcarpentry.github.io/shell-novice/instructor/instructor-notes.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/instructor-notes.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index a618bbbb5..c6f08d01c 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -489,7 +489,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer>
 </div> <!-- / div.container -->
@@ -512,8 +512,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://swcarpentry.github.io/shell-novice/instructor/key-points.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/key-points.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 5e6050d59..6cd215447 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -266,7 +266,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
 			</div>
 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -288,8 +288,8 @@ <h1>Learner Profiles</h1>
   "url": "https://swcarpentry.github.io/shell-novice/instructor/profiles.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/profiles.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 6248489fc..3c87bd867 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -611,7 +611,7 @@ <h3 id="miscellaneous">Miscellaneous<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -634,7 +634,7 @@ <h3 id="miscellaneous">Miscellaneous<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/instructor/reference.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-07-23",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
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diff --git a/key-points.html b/key-points.html
index c4142478b..9dc14d66f 100644
--- a/key-points.html
+++ b/key-points.html
@@ -487,7 +487,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
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 		</footer>
 </div> <!-- / div.container -->
@@ -510,8 +510,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://swcarpentry.github.io/shell-novice/key-points.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/key-points.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
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diff --git a/pkgdown.yml b/pkgdown.yml
index e5d1ea217..a77f93df1 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 3.1.11
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-03-12T00:23Z
+last_built: 2024-03-19T00:23Z
 
diff --git a/profiles.html b/profiles.html
index 79883dd0f..d96e089b0 100644
--- a/profiles.html
+++ b/profiles.html
@@ -266,7 +266,7 @@ <h1>Learner Profiles</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -288,8 +288,8 @@ <h1>Learner Profiles</h1>
   "url": "https://swcarpentry.github.io/shell-novice/profiles.html",
   "identifier": "https://swcarpentry.github.io/shell-novice/profiles.html",
   "dateCreated": "2014-10-22",
-  "dateModified": "2024-03-12",
-  "datePublished": "2024-03-12"
+  "dateModified": "2024-03-19",
+  "datePublished": "2024-03-19"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 89ae20783..bf59baca6 100644
--- a/reference.html
+++ b/reference.html
@@ -609,7 +609,7 @@ <h3 id="miscellaneous">Miscellaneous<a class="anchor" aria-label="anchor" href="
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
         
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.2" class="external-link">sandpaper (0.16.2)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.3" class="external-link">sandpaper (0.16.3)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.4" class="external-link">pegboard (0.7.4)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.1" class="external-link">varnish (1.0.1)</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -632,7 +632,7 @@ <h3 id="miscellaneous">Miscellaneous<a class="anchor" aria-label="anchor" href="
   "identifier": "https://swcarpentry.github.io/shell-novice/reference.html",
   "dateCreated": "2014-10-22",
   "dateModified": "2023-07-23",
-  "datePublished": "2024-03-12"
+  "datePublished": "2024-03-19"
 }
 
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