With Halloween so fast approaching, it’s time for a little focus on the spookier side of Linux. What commands might bring up images of ghosts, witches and zombies? Which might encourage the spirit of trick or treat?
crypt
Well, we’ve always got crypt. Despite its name, crypt is not an underground vault or a burial pit for trashed files, but a command that encrypts file content. These days “crypt” is generally implemented as a script that emulates the older crypt command by calling a binary called mcrypt to do its work. Using the mycrypt command directly is an even better option.
Read more at Network World