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I have a cron job that I put in cron.daily folder on my UBuntu server. I assumed that this would run daily by default, but found that it was actually not running when I checked /var/log/syslog. Did I make a wrong assumption? Do I need to configure the script with crontab -e.

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up vote 5 down vote accepted

By the run-parts used by ubuntu and debian cron:

  • File shouldn't have an extension.
  • File should be chmod 755.

And just to be sure:

  • /etc/crontab should have a line for launch the cron.daily scripts
  • cron should be running in the process table.
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File does not have extension and permissions are set to 755. cron is running verified, ps -eaf | grep cron and my crontab file is. italic bold 'SHELL=/bin/sh PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin # m h dom mon dow user command 17 * * * * root cd / && run-parts --report /etc/cron.hourly 25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )...' italic bold – 500 Apr 17 '11 at 20:42
Have you tried restarting crond? In theory it should work without it but I noticed that on rhel/centos it is not always picking up changes without restart. – dtoubelis Apr 18 '11 at 3:35

Your cronjob under /etc/cron.daily/script has to be executable. Also it has to be shell script. If you want to run Perl for instance, you have to call it from within the cronjob shell script. Make sure anacron is not on the way and the others cron.daily jobs run as specified.

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Anacron is in there, should I take that out? 25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) – 500 Apr 17 '11 at 20:47
@archie: Does the others daily cronjobs run at 6:25am? If not - then anacron messes things up. Do you have issues with them as well? – grs Apr 18 '11 at 14:01
Cron did run at 6:25 am , my job failed with the info below. CRON[18056]: (CRON) error (grandchild #18057 failed with exit status 1) – 500 Apr 25 '11 at 18:48
The error was No MTA installed, discarding output – 500 Apr 25 '11 at 23:26

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