A few weeks back, I attended an Intro to Linux presentation here at school. While I'm not totally new to Linux, I'm no expert either, so I went to maybe pick up something I didn't already know. Sure enough, I did.

http://www.linuxcommand.org/

It's a website that goes into some depth with various shell commands, shows how to write some shell scripts, and has tons of man page listings. Best of all, it's at a very basic level, perfect for beginners.

Hope this helps some...

alpha