[tlug] bash/mail: stop the send if body is blank

[Darren Cook <darren@example.com>]

I have this script that runs daily:

#!/bin/bash
cd /path/to/website/root
svn status | egrep -v '(path/to/ignore.me.file)' | mail -s "svn status
report" -c someone2@example.com someone@example.com

It is a website and the idea is that if someone has been modifying files
directly this email will inform me so I can check-in their changes.

The problem is if there are no changes I get *two* emails, one is an
unwanted blank email, and the second is an even-more-unwanted email
telling me I just sent a blank email. How do I stop it sending blank emails?

I cannot see a mail option for it so I'm guessing this is a bash
question? I.e.
 svn status | BASH-MAGIC-HERE mail -s "..." someone@example.com

Thanks in advance,

Darren

-- 
Darren Cook, Software Researcher/Developer

http://dcook.org/work/ (About me and my work)
http://dcook.org/blogs.html (My blogs and articles)