Using the START command, you can start jobs from the console. You can also use the START command to cause the JES internal reader facility to read a job from a tape or direct access volume.
Using the STOP command, you can stop a job if the programmer has coded a stop routine in the program.
Using the CANCEL and FORCE commands, you can cancel a job that is executing. If the job is not currently executing, use a subsystem command to cancel it.
Use the MODIFY command to pass information to a job. This information may be used by the currently running program. Note that you can only pass information that is already defined in the currently running program.