<a href="http://apiwiki.twitter.com/Things-Every-Developer-Should-Know#8AcommandlineisallyouneedtousetheTwitterAPInbsp" rel="nofollow">http://apiwiki.twitter.com/Things-Every-Developer-Should-Kno...</a><p>Post a status update and get the resulting status back as JSON: curl -u username:password -d status="your message here" <a href="http://twitter.com/statuses/update.json" rel="nofollow">http://twitter.com/statuses/update.json</a><p>what it doesn't tell you is that it sends the pw in the clear (unless you count base64 as crypto!)