XMission Control Panel/Server Tab/Cron - Revision history

Jab at 21:32, 25 September 2018

2018-09-25T21:32:41Z

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Boom at 22:34, 16 November 2016

2016-11-16T22:34:39Z

← Older revision		Revision as of 16:34, 16 November 2016
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			{{Archived}}
	Cron enables users to schedule jobs (commands or shell scripts) to run automatically at a certain time or date. It is commonly used to automate system maintenance or administration. Some CMS like Drupal use cron to automate some tasks.		Cron enables users to schedule jobs (commands or shell scripts) to run automatically at a certain time or date. It is commonly used to automate system maintenance or administration. Some CMS like Drupal use cron to automate some tasks.

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	~~[[Category:Cloud Hosting\|Cron Jobs]]~~
	~~[[Category:Cloud Server]]~~

Boom: Created page with "Cron enables users to schedule jobs (commands or shell scripts) to run automatically at a certain time or date. It is commonly used to automate system maintenance or administr..."

2016-04-14T00:34:20Z

Created page with "Cron enables users to schedule jobs (commands or shell scripts) to run automatically at a certain time or date. It is commonly used to automate system maintenance or administr..."

New page

Cron enables users to schedule jobs (commands or shell scripts) to run automatically at a certain time or date. It is commonly used to automate system maintenance or administration. Some CMS like Drupal use cron to automate some tasks.

To edit what jobs are scheduled, first SSH to your server, and enter:
<pre>
crontab -e
</pre>

This should open up an empty crontab if this is your first time using Cron.

Cron uses the following syntax to schedule jobs.
<pre>
minute hour day month day-of-week command-line-to-execute
</pre>

Some examples of proper scheduling syntax:
<pre>
*/5 * * * * : Run cron every 5 minutes
* */1 * * * : Run cron every hour
* * */3 * * : Run cron every 3 days
* * * */1 * : Run cron once every month
*/5 * */3 * * : Run cron every 5 minutes, all day, every 3rd day.
30 0 * * * : Run cron at 12:30 every day
</pre>

An example of a cron job which will remove all the contents of a cache directory every 3 days:
<pre>
* * */3 * * rm -rf /var/www/vhosts/domain.com/http_docs/cache/*
</pre>

To list all cronjobs in your crontab:
<pre>
crontab -l
</pre>

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{{:Cloud}}
[[Category:Cloud Hosting|Cron Jobs]]
[[Category:Cloud Server]]