Is there any way to display a different but daily MOTD when users login to the system without having to write some phrase or thoughts every day into it?
EDIT: Or how can I �update� the content of this file with some strings inside a txt file everyday?
Any help will be much appreciated!
Will give an idea how:
Ubuntu Manpage: update-motd - Automatically update the message-of-the-day (MOTD)
Thanks mate, I'll have a look at it.
This is what I was looking for, thank you so much mate! 
I read what was the update-motd package for and is just what I need. I was pretty anxious to make some tests. Now I got some time I found that the package is no longer available.
me@host:~$ sudo apt-get install update-motd
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package update-motd
Any of this packages has a similar use?
me@host:~$ apt-cache search motd
mythtv-status - Show the status of a MythTV backend
sysnews - display system news
xmotd - a message of the day browser for X
base-files - Debian base system miscellaneous files
libpam-modules - Pluggable Authentication Modules for PAM
samgar@laptop:~$
Does someone knows where can I found it? Any help will be much appreciated!
EDIT: I'm running Ubuntu 8.04