BASH Scripting Guide
- Introduction to scripting in the BASH environment.
- http://mirrors.dotsrc.org/ldp/HOWTO/Bash-Prog-Intro-HOWTO.html

KSH Scripting Guide
- Guide to programming in the Korn shell environment.
- http://www.well.ox.ac.uk/~johnb/comp/unix/ksh.html

Heiner's SHELLdorado
- UNIX shell scripting resource. Examples, tips and tricks.
- http://www.shelldorado.com/

GNU Shtool
- A collection of portable shell scripts compiled into a monolithic utility by the Free Software Foundation.
- http://www.gnu.org/software/shtool/

SHC
- A compiler for bourne shell scripts.
- http://www.datsi.fi.upm.es/~frosal/frosal.html

Shell Game
- Unix Review's monthly shell programming column. Sample scripts and commentary,
- http://www.unixreview.com/columns/schaefer/

Introduction to Shell Scripting
- Introduction to shell scripting. Covers basics and relevant details for more advanced scripting.
- http://www.tinker.ncsu.edu/LEGO/shell_help.html

CCsh FAQ
- FAQ file for CCsh, a bourne shell to C cross-compiler.
- http://www.comeaucomputing.com/faqs/ccshfaq.html

PHP For Shell Scripts
- Tutorial for using the PHP language for shell automation, hosted at PHPBuilder.com
- http://www.phpbuilder.com/columns/darrell20000319.php3?

Bashlib
- A libarary used to write BASH shell scripts for CGI.
- http://sourceforge.net/projects/bashlib/

Bourne Shell Programming Tutorial
- Comprehensive bourne shell/BASH tutorial, lots of example code.
- http://steve-parker.org/sh/sh.shtml

awk FAQ
- Frequently asked questions about the awk scripting language, a common feature of shell scripts.
- http://www.faqs.org/faqs/computer-lang/awk/faq/

Bourne Shell (sh) Programming Guide
- Comprehensive guide to bourne shell scripting.
- http://www.torget.se/users/d/Devlin/shell/index.html

Shells and Shell Scripts
- from UW.
- http://www.washington.edu/computing/unix/shell.html