IBM just released a cron scheduler for IBM i. They released cron, via the 'cronie' RPM package with Anacron, too. If you're not familiar with cron, it's a scheduling mechanism for open source platforms such as Linux and now it's available for IBM i.
This package can be a good way to schedule your open source jobs or even your IBM i CL commands and jobs that need to run on a regular basis.
Check out my quick start tutorial on using cron with IBM i. Using Cron Scheduling with IBM i