"find lets you do anything from finding all your .jpg files to seeing "all of Michael's text documents that have the execute bit set and have been modified since yesterday." And when combined with exec or xargs, a properly constructed command can make quick work of some very heavy tasks."

I can see a use for this.

"Knowing 10% of awk's already small syntax, which you can pick up in just a few minutes, will dramatically increase your ability to quickly manipulate data in text files."

"Part of the predicate for forks being so disruptive was the idea that there is One True Version — a creation, like a piece of software, a written work, or anything else, that can only be accurately represented by a single ideal expression [...] Until a git named Linus changed that." Worth poking through the comments.

"After reading this document, you should know what the PATH variable is, how to set it, and how to view the directories currently therein."

Use grep to recover files removed with rm. Clever.

"This directory of Linux commands is from Linux in a Nutshell, 5th Edition."

wget is pretty good and all but not entirely convinced the words "ultimate" and "awesome" are totally justified.

xkcd April Fool shell.

Sells small, low-power, reasonably cheap headless boxes.

"Put simply, Puppet is a system for automating system administration tasks."

"A graphical interface (GUI) for easily configuring Synergy2, an application that allows the user to share his mouse and keyboard between two or more computers."

"Cygwin is a Windows command line on steroids which runs tons of well-known, age-old, useful Linux commands. But Cygwin, like much open source software, seems scary, inexplicable and nearly unusable until..."

Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI). The program frequently alerts you to take micro-pauses, rest breaks and restricts you to your daily limit.

"A collection of Tips & Scripts to help you build a better website. The page is targeted towards the native Apache PHP MySQL environment."

"lets you easily share a single mouse and keyboard between multiple computers with different operating systems, each with its own display, without special hardware. It's intended for users with multiple computers on their desk since each system uses its o

"The purpose was to have on one page the basics commands for getting started using "

A way of getting Ruby working with my current hosts

"A file sharing application for Linux, Windows, and Mac."

An open source venture into porting Linux onto the iPod