Answers for "cron execute every 12 hours"

3

cron every 3 hours

0 */3 * * *
Posted by: Guest on April-08-2021
0

cronjob set run in every 12 hours

A crontab file has five fields for specifying day , date and time followed by the command to be run at that interval.

*     *     *   *    *        command to be executed
-     -     -   -    -
|     |     |   |    |
|     |     |   |    +----- day of week (0 - 6) (Sunday=0)
|     |     |   +------- month (1 - 12)
|     |     +--------- day of        month (1 - 31)
|     +----------- hour (0 - 23)
+------------- min (0 - 59)
* in the value field above means all legal values as in braces for that column.

You could use 0 1,13 * * * which means for every 1AM and 1PM.

0 1,13 * * * rm /var/www/*/somedir/index.php > /home/someuser/cronlogs/some.log 2>&1
where * can be replaced by different domain names.
Posted by: Guest on December-27-2021

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