Tech Tip: Periodically Update Your MOTD with update-motd
This tech tip provides you with information on how to customize your
motd (Message Of The Day) message to display the output of one or more scripts.
This uses the update-motd package, which updates the motd message when run.
I use this method on Ubuntu 9.10, but not all systems provide this
package so extra effort may be required to use it on other systems.