Shell

Files

touch
  create file, update timestamp
echo > file
  overwrite file

Bash

• Bash Reference Manual
  • Builtin Commands
  • Shell variables: Bourne, Bash
  • Conditional Expressions
• Bash Guide for Beginners
  • Conditional statements
• Advanced Bash-Scripting Guide by Mendel Cooper
  • Reference card
• .bashrc, etc
• Getting Started with BASH
• The Command Line Crash Course (for cli newbs)
• Writing Robust Bash Shell Scripts
• http://blog.commandlinekungfu.com/p/index-of-tips-and-tricks.html Unix Command-Line Kung Fu] Tip index
• http://mywiki.wooledge.org/BashGuide/Practices
• http://www.aboutlinux.info/2005/10/10-seconds-guide-to-bash-shell.html

man: echo

Basics

• IBM - Linux tip: Bash parameters and parameter expansions
• Debugging a script Bash Hackers Wiki

Options

• http://rsalveti.wordpress.com/2007/04/03/bash-parsing-arguments-with-getopts/
• http://wiki.bash-hackers.org/howto/getopts_tutorial
• shFlags - getop wrapper for long flags with fallback for non gnu-getopt

More

• http://www.cyberciti.biz/tips/spice-up-your-unix-linux-shell-scripts.html

Zsh

• A User's Guide to the Z-Shell
• Zzappers Best of ZSH Tips
• grml.org/zsh

• Github: P.C. Shyamshankar's Zsh configs
• https://gist.github.com/914831
• https://github.com/olivierverdier/zsh-git-prompt or https://github.com/jcorbin/zsh-git

lshell

• http://lshell.ghantoos.org/

Other

• http://debu.gs/entries/inferno-part-1-shell

• http://quasimal.com/posts/2012-05-21-funsh.html - functional programming (currently just in zsh)