I have a script that creates a cron job to take a backup of a local MongoDB. When I execute crontab -l command, I see following:

* */1 * * * cd /home/user/shell-scripts && sh mongo-backup.sh

I previously configured the same cronjob to run every minute but then I edited it. I have restarted my machine after editing the job.

What am I doing wrong?



1 Answer 1


use 0 at place of first * like :

0 */1 * * * cd /home/user/shell-scripts && sh mongo-backup.sh

if you use * it means it will execute every minute.

  • I am trying your solution. Sep 15, 2015 at 5:42
  • Thanks for your speedy answer. Now the job is not running every minute. That's a partial success. Sep 15, 2015 at 5:55
  • FYI, Backup scripts executes every hour on dot like 6 then 7 and so on with the solution you suggested. It doesnt execute hour after you create cron job. For example if you create cronjob at 5:27 then first execution will be at 6:00, second execution will be at 7:00 and so on. Sep 15, 2015 at 7:08
  • yes , if you want to run every hour on 27 minute then you have to do like : 27 */1 * * * cd /home/user/shell-scripts && sh mongo-backup.sh
    – pl_rock
    Sep 15, 2015 at 7:37
  • @DarshanPuranik - take a look at some crontab examples and tutorial to better understand it, for example thegeekstuff.com/2009/06/15-practical-crontab-examples (but Google knows much more and there is always man crontab, although it's rather elaborate and long); also, you can just have /home/user/shell-scripts/mongo-backup.sh instead of cd /home/user/shell-scripts && sh mongo-backup.sh Sep 15, 2015 at 7:54

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