When setup crontab on the server, it’s hard to check whether it’s working properly or not.
There’s command to check the status and log.
To check cron status and see the latest cronjob:
/etc/init.d/cron status
To start running:
service cron start
To stop running:
service cron stop
To restart running:
service cron restart
Cronjob example:
Running php script every minute:
* * * * * /usr/bin/php -e /websites/example.php > /dev/null 2>&1
/dev/null this line is added for no log
If you want to see running log:
* * * * * /usr/bin/php -e /websites/example.php > /home/user/cron.log 2>&1
/dev/null this line is added for saving to log file
Running php script every 2 minutes, which will run 30 times per hour:
*/2 * * * * /usr/bin/php -e /websites/example.php > /dev/null 2>&1
Running php script every 10 minutes, which will run 6 times per hour:
*/10 * * * * /usr/bin/php -e /websites/example.php > /dev/null 2>&1
Running php script designated minutes, this will running every 1,11,21,31,41,51 minutes:
1,11,21,31,41,51 * * * * /usr/bin/php -e /websites/example.php > /dev/null 2>&1
Running php script once a day, this will running at 1:00am every day:
0 1 * * * /usr/bin/php -e /websites/example.php > /dev/null 2>&1
Let’s keep the time well.
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