z/OS MVS JCL Reference
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EXEC statement

z/OS MVS JCL Reference

Purpose: Use the EXEC (execute) statement to identify the program or cataloged or in-stream procedure that this job step is to execute and to tell the system how to process the job step. The EXEC statement marks the beginning of each step in a job or a procedure.

A job can have a maximum of 255 job steps. This maximum includes all steps in any procedures the EXEC statements call.

The parameters you can specify for step processing are arranged alphabetically.

References: For information about the JES initialization parameters that provide installation defaults, see z/OS JES2 Initialization and Tuning Reference and z/OS JES3 Initialization and Tuning Reference.

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