The easy way to start and monitor job in SAP is have the:
Control Module for SAP. Is very powerfull and you can do many thinks.
If you havent, you can start job defined in SAP with Events:
- in SAP you have defined jobs that waits the start from event
- in controlm you run a scritp that add the event.
But without CM for SAP, the run of the job is asincronous and limited.