UNIX/Linux command line resources

Below are some resources for the UNIX/Linux command line.

http://cb.vu/unixtoolbox.xhtml

http://www.ee.surrey.ac.uk/Teaching/Unix/

http://linuxcommand.org/learning_the_shell.php

http://www.cs.usfca.edu/~parrt/course/601/lectures/unix.util.html

http://www.pixelbeat.org/cmdline.html

http://bhami.com/rosetta.html

http://www.oreillynet.com/linux/cmd/