As always, I wrote it in PHP with the pecl/Oauth extension, available in the fedora repository (and in remi for old versions or Enterprise linux).

You can download it from https://github.com/remicollet/twit.

A very useful example: Using pecl/oauth to post to Twitter

Installation

$ su -c "yum install php-pecl-oauth"
$ wget https://raw.github.com/remicollet/twit/master/twit.php -O ~/bin/twit
$ chmod +x  ~/bin/twit

Configuration

To start, you must register a consumer application on https://dev.twitter.com/apps/new. This operation will allow you to get a couple of Consumer key and Consumer secret.

Then, you need to register this codes in the application configuration:

$ twit register xxxxxxx yyyyyyyyyyyyyyyyyyy

twit version 0.1

Please visit https://twitter.com/oauth/authorize?oauth_token=zzzzzz
Then run again with 'access' option

Browsing to the displayed URL will allow the application to use your account.

Check the access:

$ twit access

twit version 0.1

Access granted !

This must be done only once, then the credentials will be recorded in the configuration file  ~/.config/phptwit/account.

Utilisation

Without option, the command display the current status :

$ twit

twit version 0.1

Name: Remi Collet
Last: twit version 0.1 released, see https://github.com/remicollet/twit
Date: Sun Jun 26 08:54:02 +0000 2011

With a message, it updates the status :

$ twit 'From blog : http://blog.famillecollet.com/post/2011/06/26/Twitter-en-ligne-de-commande'

twit version 0.1

Tweet sent for RemiCollet !

Conclusion

Quite simple ?

It you want to follow me, my twitter.