Reference materials
Get flash to fully experience Pearltrees
Commandline Fu
commandlinefu.com is the place to record those command-line gems that you return to again and again. Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too.If you have written anything about sed - whether an introduction, how sed got you out of a real-life situation, or perhaps an advanced technique you've discovered - you may like have your work published here. Your contribution will be very welcome. The essential, official compendium of useful sed one-liners.
Seders's grab bag - Tutorials