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Misu Egri
Asked: 2013-08-10 00:27:45 +0800 CST

use Cron to mail log from a job

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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`
12.04

2 Answers

  1. Best 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.

    • 2

  2. Variant with Mutt E-Mail Client

    1. Install mutt

      sudo apt-get install mutt

    2. Create mailbck.sh and paste the lines from http://pastebin.ubuntu.com/5965821/

    3. Make it executable

      chmod +x mailbck.sh

    4. Adapt it for your needs

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