Scheduling jobs

Just curious as to how to write a script to schedule regularly occuring jobs. Any example is acceptable

An example of what you are trying to do may help. Do you want to use cron for your task?

look at cron.

"man crontab".

To edit your cron jobs, do "crontab -e".

Ok. Let's say i want to write one so that every time i log on it checks my current pid, my processes, and the overall processes on the system?

Even more so, how to i set the priority and then check the time the jobs took to process?