Post #1
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Alex
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Joined: Jun 15, 2026, 9:20 AM
Posted: Jul 30, 2026, 10:19 AM
Absolute beginner JCL question. I see //JOB, //STEP1 EXEC, //DD everywhere. What is the job of each line?
Thread: JCL and JCL Utilities
JOB vs EXEC vs DD - what each card is for
Started by Alex • user3 replies302 viewsLast activity 2 weeks ago
Post #2
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Jen
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Joined: Sep 3, 2024, 11:02 AM
Posted: Jul 30, 2026, 11:19 AM
JOB = names the job, accounting, class, etc. One per job.
EXEC = runs a program or PROC. You can have multiple steps.
DD = data definition. Connects a ddname to a dataset, sysout, or * for inline data.
Post #3
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Tyler
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Joined: Nov 8, 2025, 1:44 PM
Posted: Jul 30, 2026, 2:19 PM
Think: JOB is the envelope, EXEC is "run this", DD is "here are the files."
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