The mail command is a powerful command used to manage your local mail on a *nix box. I use the mail command in (k)ubuntu frequently and have root's mail forwarded to my account on my boxes.
To use mail, you'll have to install the mailx package in (k)ubuntu.
$ sudo apt-get install mailx
When you login to your linux box via the command line you might see a message such as this:
jsteelsmith@localhost-10:~$ ssh email@example.com
Linux jacob-desktop 2.6.24-19-generic #1 SMP Wed Jun 18 14:43:41 UTC 2008 i686