Linux and Unix websites,books

blog.sun.com

cpan.org  -  The Comprehensive Perl Archive Network

freshmeat.net

www.taosecurity.com/training.html

kernel.org

linux.com

linux.org

linux.slashdot.org

linuxhq.com

lwn.net

lxer.com

rootvg.net

securityfocus.com

serverfault.com

ServerFiles.com

slashdot.org

sun.com/bigadmin

sunhelp.org

ugu.com

unix.stackexchange.com

Unix in a nutshell

Linux in a nutshell

Linux and Unix philosophy

The Cathedral & The bazaar:Musings on Linux and OpenSource

The Practice of system and Network Administration

Essential System Administration

Learning the vi and VimEditors

Unix powertools

Mastering Unix shell scripting

Classic shell scripting

Programming Perl

Automating system administration perl

Dive into python

The Ruby Programming Language