ubuntu - Sending mail from the command line, in an automated way

I want to be able to send a text file through an SMTP server of my ISP (port 25) to an email address on the internet, like my Office email address, or my GMail address. I have a basic Ubuntu 9.04 server setup on my DSL connection.

How can I use, say, Postfix, to send the .LOG file, on a bash script ? What would be the packages to install on that server, given it was never used to send email in the past ?

Thanks :-)

Answer

SendEmail seems like a nice tool for that. From what I get from the documentation it would be just a call like this:

sendEmail -f  -t  -u  -m  -a  -s  -xu  -xp