Linux links > RTFM > Cheat sheets
DOS to Linux Cheat Sheet
Examples of common commands used in Windows at the DOS prompt, with the Linux equivalent and a basic example on how to use the command.
Directory of Linux Commands
An alphabetical list of 687 Linux commands, with descriptions.
Cheat Sheet for Linux
A comprehensive Linux cheat sheet, with a useful list of commands related to system administration and configuration tasks. It's designed for a Red Hat system, but most of the commands will work on other Linux distros, too.