I'm trying to learn Unix and i thought that it would be cool if i could have to a terminal open as a geeklet however the basic command line for that will not open as a geeklet... help anyone?
Geeklets aren't designed to be interactive, so no. If you want your Terminal to be easily accessible, look into Visor or TotalTerminal, which allow you to have a slide-out Terminal window with a hotkey.
Alfred has an easy way to pass commands into Terminal without launching anything, too. You won't be 'working in' Terminal, but for quick things, it's epic.