schedule it with cron
I agree. I sounds like your script moves data to or from an external drive. If so, your script won't work from the server schedule, but it will work when scheduled by the Operating system.
I have read some message about cron. I tried to use Cronnix software to use. I have added my script as a 'every minute' task, it but it doesn't work.
After have adding a task in the table, do I have to launch or activate something on the server ?