Multi tool use

Clash Royale CLAN TAG

How do I change the subject of each of my cron jobs?

This my crontab file:

# Edit this file to introduce tasks to be run by cron.
MAILTO=richardheyes@gmail.com

0 0 * * * ./backup.sh
0 8,12,16,20 * * * /bin/bash /kunden/homepages/46/d548322256/htdocs/dev/admin/sitemaps/create.sh
0 8,12,16,20 * * * `which php7.1` -q /kunden/homepages/46/d548322256/htdocs/dev/admin/sitemap-html/create.php


As you can see there's a backup shell script, a shell script creates a plain text sitemap file and a PHP command-line script that creates a HTML sitemap.

The resulting sitemaps are viewable here:

https://www.rgraph.net/sitemap.txt

https://www.rgraph.net/sitemap.html

The resulting emails from the cron tasks come through to me as intended but with a subject line like this:

Cron <u78819167@infongp-uk31> `which php7.1` -q /kunden/homepages/46/d548322256/htdocs/dev/admin/sitemap-html/create.php
Cron <u78819167@infongp-uk31> ./backup.sh


Which is just plain ugly. Now I could prevent the email by ensuring the tasks don't produce any output or redirecting the output to /dev/null - but if any errors crop up I'd like to see it.

So my question is:

How can I change these butt ugly subjects to something that looks nicer, on a per cron job basis? Is there an environment variable that I can set from each script that would be used as the subject?

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.