adding an attatchment using the mail command?

["Mark C" <lists@funkypenguin.net>]

Hi,

I run a nightly cronjob to back up certain system files, for the life of
me I cannot add them as an attatchment, when I mail to files to myself,
they always got put into the message body.  Reading the man pages gives
no indication of how to do this, and I'm not sure if you can with the
'mail' command (I suppose sendmail would be the other alternative).

and googling fails to come up with the correct results (probally my
search string).

Any advise would be appreciated

Regards

Mark