Command line address calculator? I'm looking for a command line address calculator, where I can put in my private exponent and get out a bitcoin address in Base-58 encode. Does anyone know some free software that will allow me to do this? Basically like http://brainwallet.org/ but off line. 

Thanks.
I've cached a command line Bitcoin address generator posted a while ago on BitcoinTalk. Note that I've not tested it more than once, but it should at least give you a place to start.