bash
5 Bash tips every Linux user should know, Advancing in the Bash Shell, An introduction to the BASH Shell, Bash & Windows, BASH FAQ, Bash Prompt HOWTO, Bash Reference Manual, Bash Wallet Card, Customizing your account using the BASH shell, Getting Started with Bash :: A Bash Tutorial
csh
CC Shell, Csh One-Liners, Csh Programming Considered Harmful, CSH Scripting, Csh Startup File FAQ, Introduction to the C Shell, NCSA's Csh Tutorial, Online CSH/TCSH Manual, tcsh
Scripting
Script Libraries, Advanced KSH Scripting, awk FAQ, BASH Scripting Guide, BASH Scripting Howto, Bashlib, Bourne Shell (sh) Programming Guide, Bourne Shell Programming Tutorial, CCsh FAQ, GNU Shtool, Heiner's SHELLdorado
zsh
A Case for Zsh, Adam's Zsh Page, User's Guide to the Z-Shell, Z Shell Information, Zsh FAQ, Zsh Workshop
AE Shell
A standards-compliant Bourne Shell clone for Unix. Site includes source, binaries and documentation.
Commandline Culture Shock
Advocate essay and guide for new shell users.
comp.unix.shell FAQ
Plain-text FAQ with newsgroup links.
Cygwin
Windows ports of many of the popular GNU software tools, including the BASH and tcsh shells.
Dotfile Generator
Program to automatically build configuration files for BASH and C shells.
GNV
A Unix environment for the VMS operating system, including a port of the bash shell.
Hamilton C shell Product Overview
Hamilton C shell recreates the original UNIX C shell and utilities completely from scratch on Windows NT, Windows 95 and OS/2, adding numerous enhancements.
HTML Shell
A platform for embedding Unix shell commands and complete shell scripts into a webpage.
Introduction to the Unix Shell
Steve Bourne's original introduction to the original /bin/sh Bourne Shell.
Jsh Development Home
Development page for jsh, an OS independent shell with native Java support. Links to download source and binaries.
JSH Resources
Jsh advocacy page; hosts documentation, binaries and source for jsh, an OS independent shell with native Java support.
Korn Shell Home
Korn shell resources and documentation with multiple versions available for download.
Last File Manager
A Midnight Commander clone written by a hobbyist in Python. [Open Source, GPL]
MacShell
Unix-like command line interface for the Macintosh, modeled on csh.
MKS Toolkit
Ksh and Csh for Win32 environments, as well as a full development environment.
MUD-Shell
Shell written to operate like a text adventure game or MUD. Open source implementation in Perl.
New Adventure Shell
Script written in ksh/bash/zsh which causes the user's shell to act like a text adventure game.
pdksh
Public domain Korn shell. Manuals and links to download it.
Perl Shell
Home page for PSH, a native perl shell for Windows 95/98/2000 and POSIX operating systems. Documentation and binaries available for download.
Psh Development Home
Development page for psh, a native perl shell for Windows 95/98/2000 and POSIX operating systems. Documentation and mailing list archives available online, with source and binaries available for download.
Rc, the Plan 9 Shell
A command interpreter for the Plan 9 OS. The article contrasts rc with the Bourne shell, the closest Unix equivalent.
scsh
A broad-spectrum systems-programming environment for Unix-like operating systems. Based on R5RS Scheme.
Shell Configuration Files
Example startup files for bash, csh, ksh, sh and zsh.
Shell Overview
A high-level examination of the Unix shell.
Softpanorama Open Source University
Open content tutotials and other information on bash, ksh, and zsh.
VCL Man Page
Manual page for VCL, a VMS shell emulator for Unix.
VXDCL
A Unix port of the OpenVMS DCL interactive shell and command language.
Wapsh Home Page
A shell allowing logins to a Unix system from a WAP enabled cellular phone.