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How to run a Cron job weekly?
Better Stack Team
Updated on October 5, 2023
To run a cron job weekly, you can use the following format in your crontab file:
0 0 * * 0 /path/to/command
This cron job will run at midnight (0 hour and 0 minute) on Sunday (day 0). Replace /path/to/command with the command you want to run.
Here's a breakdown of the format:
- The first
0represents the minute (0-59) - The second
0represents the hour (0-23) - The
*s**** in the third and fourth positions represent the day of the month and the month (respectively). Using*means**** the job will run every day of the month and every month. - The
0in the fifth position represents the day of the week, with 0 representing Sunday, 1 representing Monday, and so on. - The final field is the command to be executed.
So the cron job in the above format will run every Sunday at midnight.
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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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How to get cron job errors in email with MAILTO?
One of the neat features of Cron is the ability to send emails when an error occurs during the execution of the cronjob. This can be done using the `MAILTO` environmental variable. When executing cronjob, any output is mailed to the owner of the crontab or to the user or email address specified in the `MAILTO` environment variable in the crontab, if such exists.
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By default, cron checks crontabs for cronjobs every minute. If you want to run a job every n seconds you need to use a simple workaround.
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How to view and read cron logs on Ubuntu, Debian and CentOS?
Cron can generate logs, which are very useful in troubleshooting your cron jobs. In this quick tutorial, we will take a look at cron logs – how to find them and how to read them.
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