Execute a command in the shell, and beep when it's done (I know there are ways to do this natively in bash at least, but I couldn't make it work).
done-beep <command and args>
"THE COFFEE-WARE LICENSE" (Revision 1): As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you must buy me a coffee in return.