#!/usr/bin/env php
Usage: cron_run_jobs.php securitykey userlogin|'firstadmin' [cronjobid] [--force]
The script return 0 when everything worked successfully.

On Linux system, you can have cron jobs ran automatically by adding an entry into cron.
For example, to run pending tasks each day at 3:30, you can add this line:
30 3 * * * /home/caragogo/www/dolibarr/scripts/cron/cron_run_jobs.php securitykey userlogin > /home/caragogo/www/dolibarr/documents/cron_run_jobs.php.log
For example, to run pending tasks every 5mn, you can add this line:
*/5 * * * * /home/caragogo/www/dolibarr/scripts/cron/cron_run_jobs.php securitykey userlogin > /home/caragogo/www/dolibarr/documents/cron_run_jobs.php.log

The option --force allow to bypass the check on date of execution so job will be executed even if date is not yet reached.