Job Control Language
Job Control Language (JCL) is a name for scripting languages used on IBM mainframe operating systems. It instructs the system on how to run a batch job or start…
Job Control Language (JCL) is a name for scripting languages used on IBM mainframe operating systems. It instructs the system on how to run a batch job or start a subsystem.[1]
The purpose of JCL is to say which programs to run, using which files or devices [2] for input or output. It can indicate under what conditions to skip a step.
There are two distinct IBM Job Control languages:
- one for the operating system lineage that begins with DOS/360 and whose latest member is z/VSE; and
- the other for the lineage from OS/360 to z/OS, the latter now including JES extensions, Job Entry Control Language (JECL).
They share some basic syntax rules and a few basic concepts, but are otherwise very different.
Notes
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