Update linux-notes.md

Author: georgemillard

linux-notes.md

@@ -1,3 +1,7 @@
 `tail` prints last 10 lines
 
 `ps -a | less` all processes, piped to less
+
+`cut -d: -f1 /etc/passwd` list all local users
+
+`sudo passwd <user>` reset user password