Array slice for $@

Author: kidd

book.org

@@ -196,9 +196,23 @@
    #+begin_src bash
      a=(a b c d e f g)
      echo "${a[@]:1}"  # tail of array
-     echo "${a[@]:1:2}"  # from position 1, take 2 elements
+     echo "${a[@]:1:2}"  # from that, take 2 elements
    #+end_src
 
+   Don't ask me why, but when the array is =$@=, it seems that it
+   behaves a bit differently (would be great to know why):
+
+   #+begin_src bash
+     a=(a b c d e f g)
+    foo() {
+     echo "${@:2}"  # tail of array
+     echo "${@:2:2}"  # from that, take 2 elements
+    }
+    foo a b c d
+    foo "${a[@]}"
+   #+end_src
+
+
 ** Read lines from file
    The =read= command we used just above is part of the usual idiom to
    read a file line by line.