Here are some warm-up exercises for anyone just starting to use the Linux command line. Warning: It can be addictive.

If you use PuTTY on a Windows box to connect to your Unix systems, here’s what you have to do to use the pscp command. First, you need to open a DOS command prompt. On some versions of Windows ...

There's a command line tool for running multiple commands on multiple Linux servers at once. Jack Wallen shows you how with Parallel-SSH.