A thoroughly redesigned and updated version of Murach's best-selling book that makes it easier than ever to learn how to use JCL (Job Control Language) on IBM mainframes. After you learn how to use JCL for the jobs that you run everyday, you will learn the advanced JCL skills that let you get the most from your operating system. Along the way, you'll learn how to use general-purpose utilities, the IDCAMS utility for VSAM files, and Unix system services. It's all there in the unique Murach style that has been training professional programmers for more than 25 years.