Advice for everyday Unix systems administration and some clever ways to approach more challenging problems.
Whenever you use a simple grep command to find a single word or phrase in a file, you run the risk of getting a lot of extra "stuff" you didn't want to see. Here are two grep commands that will do just what you want.
If you're ever tempted to send encrypted messages to a particular recipient but have never used PGP, you might be happy to learn that it's not all that hard to get started. Enter GnuPG and a handful of gpg commands!