Description: IBM's MVS/ESA Version 4.0 includes a host of new facilities and up-to-date conveniences such as IF/ELSE logic, private proc libraries, nested procs, and the ability to create and manage disk data sets through system management. Written for seasoned mainframe programmers, this extremely practical, hands-on guide skips the introductory material found in most JCL guides and cuts right to the chase with everything you need to quickly master MVS/ESA Version 4.0 and use it to create more understandable and easy-to-manage job streams. Shows how to use Version 4's new job stream coding techniques and facilities to create new job streams or to make existing ones more readable and easy to process. Teaches by example with dozens of clear, well-annotated full-length examples. All examples are executable and include real data set names. All examples show exactly how the JCL appears on TSO/ISPF screens, not punch cards. Introduces the Storage Management Subsystem and demonstrates how it relates to MVS/ESA and how it affects the JCL and system reporting.

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