ttytter

console Twitter client
A client for the microblogging service Twitter. The difference with other
clients is that this is a 100% text-based command line, yet fully
functional application.
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In interactive mode, it is a fully interactive client with asynchronous
background updates and commands. It supports ANSI colour, hashtags and
Twitter Search.
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From the command line, use it to update your Twitter in shell scripts, from
cron, and so on. TTYtter is extensible and you can run it in daemon mode
to make your own Twitter bot.