Linux has become so idiot proof nowadays that there is less and less need to use the command line. However, the commands and shell scripts have remained powerful for advanced users to utilize to help them do complicated tasks quickly and efficiently. To those of you who are aspiring to become a UNIX/Linux guru... there are plenty of cheat sheets available on the web and on books.

Cheat sheets for DokuWiki, TiddlyWiki, and OpenOffice.org

Below list of Linux cheat sheets can be used by everybody who administer Linux operating system including beginners/newbies and bearded gurus.

Linux-Unix cheat sheets - The ultimate collection. Linux Command Line Cheat Sheets.

Cheat sheet act as a reference tool which provides cut and paste kind of commands to complete a specific task.

" Let me teach you how to work efficiently with command line history in bash. This tutorial comes with a downloadable cheat sheet that summarizes (and expands on) topics covered here (scroll to the end for a download link). In case you are a first time reader, this is the 3rd part of the article series on working efficiently in bourne again shell. Previously I have written on how to work efficiently in vi and emacs command editing modes by using predefined keyboard shortcuts (both articles come with cheat sheets of predefined shortcuts)..."

Need a quick reference card? Here you have a list you can choose from:

As a Linux user you’ll come to learn and love certain commands. Remembering these commands is the toughest part. Some people use cheat-sheets some create scripts, and some just refer to website for their fix. Here I have posted the 25 top command line snippets.

"When you are working in a shell you certainly don’t want to waste your time using arrow keys or home/end keys to navigate around the command line. One of the most popular shells, bash - Bourne Again SHell, uses GNU’s Readline library for reading the command line. The GNU Readline library provides a set of functions for use by applications that allow users to edit command lines as they are typed in. The readline library also includes functions to maintain a list of previously-entered command lines, to recall and perhaps reedit those lines, and perform csh-like history expansion on previous commands. Both emacs and vi editing modes are available.