Learn the correct JES2 command to restart a job that is currently executing in z/OS. Find out why $E jobname is the right syntax to use.
Table of Contents
Question
JES2 command to restart a currently executing job?
A. $A jobname
B. $R jobname
C. $E jobname
D. $S jobname
Answer
The correct JES2 command to restart a currently executing job is:
C. $E jobname
Explanation
The $E command tells JES2 to restart execution of the specified job. Some key things to know about the $E command:
- It can only be used on jobs that are currently executing. You cannot use $E to restart a job that has already finished executing or is waiting to execute.
- The full syntax is $E jobname, where jobname is the name of the job you want to restart.
- $E causes execution to be suspended, the job is returned to the top of the execution queue, and execution is restarted from the beginning of the job.
- Any data sets created during the previous execution are deleted before the restart.
The other command options listed are incorrect:
- $A is used to release a job from hold status
- $R is used to route a job for execution
- $S is used to start a job that was previously initiated
So in summary, to restart a z/OS job that is currently running, the proper JES2 command to use is $E followed by the job name. This will stop and requeue the job to run again from the beginning.
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