JCL Fundamentals on z/OS from Pluralsight

JCL is one of a handful of core technologies fundamental to working with z/OS on an IBM Z system. It's the language that controls the execution of batch jobs. You must have a working knowledge of JCL in order to do any work on that system.

JCL is one of a few core technologies that are fundamental to working within an IBM Z mainframe system. In this course, JCL Fundamentals on z/OS, you will learn the foundation for using JCL to run batch jobs on the IBM Z. First, you will discover how to execute programs, define resources (datasets) used by those programs, and control the steps of a job based on the results of previous steps. Next, you will explore how to use catalogued procedures for common, repetitive sequences of JCL statements. Then, you will uncover how the Job Entry Subsystem (JES) processes JCL statements and how the system interprets the specifications you define in your JCL. Finally, you will know where to find IBM documentation about more-advanced JCL features, error codes, and other details. By the end of this course, you will be able to read and understand, write, modify, and submit JCL under z/OS. Note: There is no way to run JCL or the system utilities used in the exercises on systems other than IBM Z. To run your jobs, you will need access to a z/OS instance on a mainframe. If you are learning mainframe technology for your employer, they may provide you with access to a mainframe system where you can practice writing JCL and running jobs.

What's inside

Syllabus

Course Overview

Detailing Jobs and Steps

Reviewing the JOB and EXEC Statements

Breaking Down Datasets and the DD Statement

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Explores core IBM Z mainframe systems technologies: JCL and JES

Builds necessary foundation for working on z/OS systems

Provides hands-on experience through exercises (requires access to mainframe)

Reviews summary

Essential jcl foundation for z/os

According to learners, this course provides a solid and fundamental understanding of JCL on z/OS, essential for working within an IBM Z mainframe system. Many found the explanations of core JCL statements, such as JOB, EXEC, and DD, to be exceptionally clear and detailed. The course is praised for its practical approach, preparing students to read, write, modify, and submit JCL effectively. While highly valuable for professionals, a significant point raised is the crucial need for access to a z/OS mainframe instance for hands-on practice, which is not provided and can be a barrier for some learners.

Well-paced for beginners, but potentially basic for others.

"The content itself is decent for beginners, but it's very basic. As someone with some prior exposure to mainframes, I was hoping for a bit more depth..."

"The course explains JCL well, but it feels like it assumes some level of familiarity with mainframe concepts beyond just 'zero to JCL'."

"Solid course on JCL basics. It covers all the essential components you need to get started."

Highly relevant for career-focused mainframe individuals.

"This course is an absolute must for anyone stepping into the mainframe world..."

"It truly built a solid foundation for my professional work."

"I learned how to use practical tools and strategies that I could apply immediately to my work."

Helps learners apply JCL skills to real-world tasks.

"I found the practical examples of compiling, linking, and running programs extremely helpful. It built a solid foundation for my work."

"This course truly enables you to read, write, and modify JCL effectively."

"The exercises, if you have access to a system, really reinforce the concepts. Highly recommend for aspiring mainframe developers."

Offers clear, detailed explanations for JCL essentials.

"This course is an absolute must for anyone stepping into the mainframe world. The explanations of JCL statements were incredibly clear, especially the JOB, EXEC, and DD statements."

"Excellent overview of JCL. The instructor made what can be a dry subject engaging. I particularly appreciated the section on how JES processes JCL..."

"A perfect starting point for JCL. The logical flow from JOB to EXEC to DD statements makes complex topics digestible."

Requires z/OS system access, a significant hurdle for some.

"Good foundational course... My main challenge was getting access to a z/OS system to practice the exercises, which isn't the course's fault, but it's a critical prerequisite..."

"While the course provides good theoretical background, it's virtually useless without hands-on practice. I don't have mainframe access..."

"Could not complete the course because I don't have access to a z/OS mainframe. This should be explicitly stated as a non-negotiable requirement at the very beginning..."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in JCL Fundamentals on z/OS with these activities:

Gather Resources on JCL

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Having a variety of resources on JCL will support your learning journey and provide quick references as you complete course assignments.

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Search for online documentation, tutorials, and articles on JCL.
Bookmark or save the resources for future reference.
Review and summarize the key takeaways from the resources.

Review JCL Reference Guide

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Consulting a JCL reference guide will provide in-depth explanations and technical details that can enhance your understanding of the course material.

View IBM TS7700 Release 5.2.2 Guide on Amazon

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Find an up-to-date JCL Reference Guide.
Review the overview and table of contents to identify relevant sections.
Consult the reference guide for specific JCL topics and syntax as needed.

Discuss JCL Concepts with Peers

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Collaborating with peers can reinforce your understanding of JCL concepts and provide different perspectives.

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Join or create a study group or discussion forum with other students taking the course.
Ask questions, share insights, and engage in discussions about JCL topics.
Provide feedback and support to your peers.

Two other activities

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Build a JCL Script for a Simple Job

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Creating a JCL script for a simple job will reinforce your understanding of JCL concepts and provide you with a practical example of how to use JCL.

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Identify the requirements for a simple job, such as compiling and running a program.
Write a JCL script that meets the requirements of the job.
Test and debug the JCL script to ensure it runs successfully.

Write JCL for Different Scenarios

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Regular practice writing JCL for different scenarios will improve your proficiency and confidence.

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Identify a variety of JCL scenarios, such as compiling, linking, or running programs.
Write JCL scripts to address each scenario, considering various parameters and options.
Test and validate the JCL scripts to ensure they meet the requirements of each scenario.

Career center

Learners who complete JCL Fundamentals on z/OS will develop knowledge and skills that may be useful to these careers:

Job Control Language Analyst

Job Control Language (JCL) Analysts create and maintain the JCL that controls the execution of batch jobs on IBM Z systems. This course provides a foundation for using JCL to run batch jobs on the IBM Z, including how to execute programs, define resources (datasets) used by those programs, and control the steps of a job based on the results of previous steps. With this knowledge, JCL Analysts can ensure that batch jobs run efficiently and effectively.

See salaries and explore the career path for Job Control Language Analyst

Job Scheduler

Job Schedulers are responsible for managing the execution of batch jobs on IBM Z systems. This course provides a foundation for understanding how the Job Entry Subsystem (JES) processes JCL statements and how the system interprets the specifications defined in JCL. With this knowledge, Job Schedulers can effectively manage the flow of batch jobs and ensure that they are processed in the correct order and with the appropriate resources.

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Systems Programmer

Systems Programmers are responsible for maintaining and managing IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Systems Programmers can troubleshoot JCL errors and ensure that the system is running efficiently and effectively.

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Data Center Operator

Data Center Operators are responsible for operating and monitoring IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Data Center Operators can monitor the progress of batch jobs and identify and resolve any issues that may arise.

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Mainframe Programmer

Mainframe Programmers develop and maintain applications that run on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Mainframe Programmers can ensure that their applications run efficiently and effectively.

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Database Administrator

Database Administrators are responsible for managing and maintaining databases on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Database Administrators can ensure that database-related batch jobs run efficiently and effectively.

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Network Administrator

Network Administrators are responsible for managing and maintaining networks on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Network Administrators can ensure that network-related batch jobs run efficiently and effectively.

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Security Administrator

Security Administrators are responsible for managing and maintaining security on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Security Administrators can ensure that security-related batch jobs run efficiently and effectively.

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Storage Administrator

Storage Administrators are responsible for managing and maintaining storage on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Storage Administrators can ensure that storage-related batch jobs run efficiently and effectively.

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Virtualization Administrator

Virtualization Administrators are responsible for managing and maintaining virtualized environments on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Virtualization Administrators can ensure that virtualization-related batch jobs run efficiently and effectively.

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Cloud Administrator

Cloud Administrators are responsible for managing and maintaining cloud environments on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Cloud Administrators can ensure that cloud-related batch jobs run efficiently and effectively.

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DevOps Engineer

DevOps Engineers are responsible for bridging the gap between development and operations teams on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, DevOps Engineers can ensure that batch jobs are developed and deployed efficiently and effectively.

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Software Engineer

Software Engineers develop and maintain software applications on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Software Engineers can ensure that their applications run efficiently and effectively.

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Data Scientist

Data Scientists use data to solve business problems on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Data Scientists can ensure that their data-processing jobs run efficiently and effectively.

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Business Analyst

Business Analysts analyze business needs and develop solutions on IBM Z systems. This course provides a foundation for understanding the JCL that controls the execution of batch jobs on IBM Z systems. With this knowledge, Business Analysts can ensure that their solutions are implemented efficiently and effectively.

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