Unix command cheat sheet - common commands for the unix command line (telnet)

Here's a command reference card for some regularly used unix commands, tested on linux but should hopefully work on most unix command shells. Any additional (non-obscure) commands you think should be added,or corrections please email me. The Windows 2000 command pocket reference (O'Reilly) is a good book to get if you want to learn the equivalent commands for Windows - and most of the below are possible in windows, although the resource kit is usually required.