goxsh — a command-line frontend to the Mt. Gox Bitcoin Exchange with support for Exchange Bitcoins.

• Buy and sell bitcoins
• Specify buy/sell amounts in BTC or USD
• List and cancel orders
• Withdraw bitcoins (Mt. Gox only)
• Interactive authentication with no-echo password prompt — no need to store your credentials on disk
• Login to one of two exchanges (login user@mtgox or login user@exchb)
• Display account balance
• Display ticker
• Calculate profitable short/long prices from an initial price
• Tab completion of commands
• Abort commands with SIGINT (ctrl-c on *nix) without exiting, if Mt. Gox is being slow

Python 2.6 or a newer 2.* release.

Run the script in a terminal window and type "help" to see the list of available commands.

Public domain. :)