I’m sure most of you have the big “HTML Reference Book,” but how often do you really use it?
Most developers and designers (…including myself) will quickly pop open firefox and google snippets of code hoping that the vast www will provide them with the answers they seek. This method of research is priceless but not often available. Thankfully a bunch of developers sat down and decided to shorten those “huge” reference books into single sheets - Cheat Sheets. I hope you enjoy the collection…
Web Development Cheat Sheets
Databases / SQL Cheat Sheets
Language Cheat Sheets
- ColdFusion - work in progress
- PHP
- Ruby
- Regular Expressions
- JSP
- Java
- Python
Version Control Cheat Sheets
Other
Commercially Printed CheatSheets
- Visibone - javascript, browsers, colors, fonts, html.
- TechnoChallenged - web dev, programming, os, software
Am I missing any good ones? Feel free to post any others in the comments.
Updates:
- Perl - thanks Dom.
- Regex - thanks bjhanifin
- Perl - thanks Derek
- Subversion - nice reference card, thanks Andreas
- Debian - thanks again Andreas
- UML - Andreas again, thanks
- PostgreSQL - thanks for the suggestion frank.
- XHTML / HTML
Special Thanks to www.petefreitag.com for the original list


Nice collection. I have been making cheat-sheets too.
Here are the ones I have currently published:
ed cheat sheet:
http://www.catonmat.net/download/ed.text.editor.cheat.sheet.pdf
sed cheat sheet:
http://www.catonmat.net/download/sed.stream.editor.cheat.sheet.pdf
awk cheat sheet:
http://www.catonmat.net/download/awk.cheat.sheet.pdf
perl’s pack/unpack and printf cheat sheet:
http://www.catonmat.net/download/perl.pack.unpack.printf.cheat.sheet.pdf
perl’s special variable cheat sheet:
http://www.catonmat.net/download/perl.predefined.variables.pdf
Visit http://www.catonmat.net for the same cheat sheets in different formats (.txt, .doc).
I have made some 10 more, will be putting them out soon!
Sincerely,
Peteris Krumins