Interesting and Useful Terminal Commands

A user a the Ubuntu Forums has compiled a list of interesting and useful terminal commands that can be used in Ubuntu:

Since I’m a noob myself and don’t know much about the inner workings of the terminal, I won’t shed any light on that subject. But, I would like to share some interesting and useful terminal code I’ve found. This code was only tested on Ubuntu Feisty Fawn, but it will also work on most Mac OSX computers and should work on all Ubuntu releases.