JCL JOB Card

JCL Structure Jobcard parameters

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JOB card is nothing but JOB identity.

JOB card is the first statement to the JCL

JOB card has the accounting information and job related information.

JOB card coded only once in the JCL.

JOB card is the first control statement in the COBOL.

JCL requires JOB card to identify the JOB.

JOB card used to make the OS also makes aware of the JCL.

JOB card started with slashes (‘//’) in the first line and can continue in the second line. But no continuation in 72th column not required when continuation required.

JOB Card statement:

JOB card contains JOB name & JOB parameters which are applied to all the steps in JCL.

JOB parameters treated as global and applied to each step in JCL unless the step has specified parameters.

JOB Card syntax like below

	//JOB-name JOB	JOB-card parameters

JOB card statement can be divided into 3 parts.

	1.JOB name
	2.JOB Operation
	3.JOB card parameters

JOB name:

JOB name is useful to identify the job.

JOB name needs to provide at the very first line of JCL

JOB name starts from 3rd character and ends at 10th character.

JOB name might be less than 8 characters.

JOB name mostly have two styles.

1. JOB name is based on the system and subsystem with which the job associated.

2. JOB name is based on the user who submitted the job.

JOB Operation:

JOB keyword is used to identify the JOB card.

JOB operation only provided with JOB card.

JOB operation used to code only one in JCL because JOB card is unique for entire JCL.

Syntax:
	//JOB-name JOB	JOB-card parameters

JOB Card parameters:

JOB card contains the parameters and the details which are applied to all the steps in JCL.

JOB card parameters are treated as global and apples to each step in the JCL.

If parameters are coded at step level, the priority is step level parameters and next JOB level parameters.

JOB card parameters can be divided into two types based on their usage.

	1. Positional parameters
	2. Keyword parameters.

JOB card parameters can can be explained in detail here .


If any questions on the above, post your queries on Jcl Discussion forum


JCL Structure Jobcard parameters

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