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

[Nguyen Vu Hung <vuhung16plus@example.com>]

On Wed, Jan 12, 2011 at 10:22 AM, Darren Cook <darren@example.com> wrote:
> 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

Please try:

svn status | egrep -v '(path/to/ignore.me.file)' > a.tmp.file
mail -s "svn status  report" -c someone2@example.com < a.tmp.file

calling mail command from a shell is not bad, but I suggest doing that
with script
written in python or PHP.

>
> 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)
>
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-- 
Best Regards,
Nguyen Hung Vu [aka: NVH] ( in Vietnamese: Nguyễn Vũ Hưng )
vuhung16plus{remove}@example.com , YIM: vuhung16 , Skype: vuhung16plus