Update Twitter and FriendFeed from the Linux command line
http://www.ibm.com/developerworks/linux/library/l-friendfeed/index.html

curl http://wikipedia.org

Summary: Learn how to use GNU Wget and cURL to send status updates to Twitter and FriendFeed without the use of a Twitter desktop application, and follow feeds from both Twitter and FriendFeed right from the Linux® command line. This article was updated on 31 Oct 2008 to correct a coding error in the wget command under "Adding a tweet using GNU Wget and cURL." --Ed.