PCLinuxOS Magazine offers Command Line Interface Intro
 

The good folks at PCLinuxOS have up a pdf of articles they've had in re using the command line.

For anyone who may be intimidated by the command line, this pdf is an excellent tutorial on a variety of topics.

http://pclosmag.com/

nice link! thanks! a good refresher for me...

I downloaded the PDF as well. Nice to go through. At some points the guide makes big steps forward and at some points the guide goes by at turtlespeed.