Summary -

This page describes audiences, objectives, prerequisites, and the topics covered as part of the tutorial.

Introduction -

JCL (Job Control Language) is a programming language used on IBM mainframe operating systems. It is a language with a set of predefined instructions that are used by the JOB ENTRY SUBSYSTEM (JES2 or JES3) to instruct the system on how to run a batch job or start a subsystem.

Objective and Audiences -

The objective of this tutorial is to support mainframe developers when they need the most.

We have covered the tutorial with a complete list of topics that almost covers 99% of JCL. This tutorial helps to improve your technical expertise in JCL coding.

The tutorial is for anyone who can be a student, a fresher, a software engineer, a mainframe developer, an expert or anyone who is trying to learn JCL on Mainframe or JCL alone.

In this tutorial, all the topics are covered with in-depth information that includes examples and useful to improve your JCL programming skills.

Prerequisites -

There are no prerequisites to learn the JCL. Having a computation background will be an advantage in understanding the concepts a bit easier. Without a computation background, it is a bit time-consuming to understand the concepts, and you need to go through the topic more than once to understand clearly.

If you are trying to learn Mainframe JCL, having a mainframe id handy helps to practice the concepts immediately. However, mainframe id is not mandatory to learn the JCL and we have covered all concepts with full of examples.

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