A brief introduction about JCL
JCL stands for JOB CONTROL LANGUAGE. JCL acts as an interface between the requirements or instructions in your application programs ( COBOL, PL/1, Assembler, etc) and Mainframe OS(MVS or ZOS).
JCL Errors and ABENDS
JCL ERRORS occurs before executing the JOB. If JCL has syntax errors JOB will not be submitted. This is detected by JES.
An ABEND occurs while executing the JOB.
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