In Linux, we use
crontab to run automations. So far i know only that system cron can make automated tasks. Now i found out Drupal has the Crons also. But, the Drupal whatever is a bundle of script itself only.
I so far realized there is no way to make a PHP script to be up & running itself, without System Cron. And also it should not be.
- So how does Drupal Cron get activated unless their tasks are registered in Linux/System