| Excerpt |
|---|
A cronjob is a script that will be executed by cron, a time-based job scheduler in Unix-like operating systems. This features allows you to execute system calls in regular intervals for example checking your emails every 5 minutes. |
The configuration of the jobs is located in /etc/crontab (on Debian based distributions).
Before adding a entry you need to know how you can define the execution interval:
| Code Block |
|---|
# * * * * * command to execute
# ┬ ┬ ┬ ┬ ┬
# │ │ │ │ │
# │ │ │ │ │
# └─│─│─│─│────────── min (0 - 59)
# │ │ │ │
# └─│─│─│────────── hour (0 - 23)
# │ │ │
# └─│─│────────── day of month (1 - 31)
# │ │
# └─│────────── month (1 - 12)
# │
# └────────── day of week (0 - 6) (0 to 6 are Sunday to Saturday, for example 0 equals Sunday and 4 Thursday) |
For example if you want to run a job every half hour you have to set the params 30 * * * *
or 0 0 1 1 * runs once a year at midnight in the morning of January 1
Webcron
Pseudo-cron
The pseuco-cron feature from CONTENIDO adapts the general logic from the default cron feature. The difference between the two implementations is that cronjobs are controlled through a operating system timer and the CONTENIDO pseudo cron 'timer' is a call of the frontend.
...
| Name | Description | Execution time |
|---|---|---|
| advance_workflow.php | This cronjob activates the next workflow step if the time limit is over | - |
| linkchecker.php | Checks all links | #02 1 * * * // (deactivated with #) |
| move_articles.php | Move articles at specified time | */1 * * * * (periodically every minute) |
| move_old_stats.php | This cronjob is used to move old statistics into the stat_archive table | 0 0 1 * * (every first day in the month at midnight) |
| optimize_database.php | This cronjob optimizes all database tables | 0 0 * * * (every full hour) |
| run_newsletter_job.php | Cronjob for newsletter plugin | - |
| send_reminder.php | Cronjob to send the reminder items. | */5 * * * * (periodically every 5 minutes) |
| setfrontenduserstate.php | Activate/deactivate frontend users by time. | */5 * * * * (periodically every 5 minutes) |
...