thanks for the reply and info darrin. the terminal emulator i use is the one by Jack Palevich. I see from the help file that it uses GNU bash 4.1.0(4), so is the Android Terminal Emulator you say uses Bourne the google product? I read online that people didn't have much success with that one so I stayed away from it. I also downloaded the Better Terminal which uses ash.
I suppose i prolly dont need the fancier shell you referenced, as I sitll don't really know what the capabilities of the two emulators I have now are. As I said, still a command line nob, any books/guides/websites you can recommend?