Almost every Linux website seems to have a list of the "best command line commands". Sometimes they get them wrong.
Here is a list of useful commands that I came up with by looking at my 'history' file. I would not be happy to use a computer platform that didn't support them.
Read the full thing at http://www.techi.com/2010/06/iphone-4-signal-saga-continues-did-apple-know/