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2

use Cron to mail log from a job

rated 0 times [ 2] [ 0] / answers: 1 / hits: 431 / 2 Years ago, tue, july 19, 2022, 3:03:55

I have a weekly script that cron runs to make a zfs snapshot. I was wondering if it is possible to mail a OK mail if the job run correctly and a error mail if something happened and in the content of the mail to have the job log. How to do this?

25 11 * * 5 /home/aegrimisu/ZFS-autosnapshot.sh>>/home/aegrimisu/ZFS-WeeklySnapShot.log 2>&1 | mail -s "ZFS SnapShot Status" [email protected]

The script content is :

#!/bin/bash

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

zfs snapshot Misu@Misu-`date +%Y.%m.%d-%H:%m:%S`

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tialmes

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2 Years ago

answered 2 Years ago corsee · Accepted Answer

2>&1 tells the shell to redirect standard error to standard output. Without it, you would still get e-mails if the script printed anything on standard error.

This line from your ZFS-autosnapshot.sh script:

zfs snapshot Misu@Misu-`date +%Y.%m.%d-%H:%m:%S`

most probably gives you an error, so you must to use:

25 11 * * 5 /home/aegrimisu/ZFS-autosnapshot.sh>>/home/aegrimisu/ZFS-WeeklySnapShot.log 

            | mail -s "ZFS SnapShot Status" [email protected]

as crontab if you want to receive the error by e-mail.