There is an application called terminal. Pops you straight to the command line. Apple-space bar brings up spotlight, and then type terminal and it will be the top app. Either that or got to the utilities folder in the applications directory. :)
Probably 98% of mac users don't know that the flash GUI is generally just running UNIX commands under the skin. There are lots of things you can customise under the hood if you can be bothered. You can get code from other UNIX variants and compile them for Mac, ssh and scp to other UNIX boxes etc etc. I can do everything at home that I can do at work on our Solaris MINI's. Can anyone see why I find it hard to understand the claims that they are incapable as computer? That's crazy talk.
Look, Apple may be rubbish as all the people that have never used one keep telling us but they seem to have a lot of people pretty happy. When I read this even I was shocked.
Apple claim 91% of the over $1000US market in June.