[X4U] Free eBook to help you learn some Unix

[Timothy Luoma]

"If you want to learn the OS X command line, but find the available  
books intimidating, bristle at the thought you should read anything  
for "dummies," or just worry that you may by eaten by a grue while  
plumbing the depths of /dev/random, Unix for the Beginning Mage may  
be just what you're looking for. The book, available as a free PDF  
download, takes a humorous approach to learning some basic features  
of the unix shell and environment."

Download the book from http://unixmages.com/

I found out about this from http://creativebits.org/