UNIX Shell Patterns
Korn Shell Reference
UNIX Shell Programming Bourne and Korn Shells
A Brief Introduction To C Shell Variables
UNIX Shell Scripts
Writing UNIX Scripts
Part 1: Fundamental Programming in Bash
Part 2: More Bash Programming Fundamentals
Part 3: Exploring the Ebuild System
Working the the Shell Environment
pdksh (Public Domain Korn)
Shell Script Programming
C Shell Tutorial
BASH FAQ
Shell Differences FAQ
Z-Shell FAQ
GNU Bash Reference Manual
Bourne/Bash: Shell Programming Introduction
Functions and Aliases in Bash
Introduction to Shell Scripting
The Deep, Dark Secrets of Bash
bash (GNU)
csh (C)
ksh (Korn)
sh (Bourne)
tcsh
zsh (Z)
Shell Command Language Index
UNIX Bourne Shell Programming
Features of the TCSH Shell
Improve Bash Shell Scripts Using Dialog
Extending the Bash Prompt
Shell Functions and Path Variables, Part 1
Shell Functions and Path Variables, Part 2
Shell Functions and Path Variables, Part 3