Want some color in your shell logins?
There is a package for Ubuntu and Debian (and i suppose for the other Distros) which will automatically generate a color system logo for your shell.
You can install the package using:
apt-get install linuxlogo
Next, write the logo to your motd or issue file using the command
/usr/bin/linux_logo > /etc/motd
Note: This may not work will all types of terminals