command line micro-blogging tool bti sends a tweet message to twitter.com, identi.ca, or any other laconi.ca instance. bti provides an easy way to send tweet messages directly from the command line or a script. It reads the message on standard input and uses the account and password settings either from the command line options or from a config file to deliver the message. Besides sending messages bti also allows to see one's friends', a group's or a specific user's timeline, the public timeline, and replies to messages.