Mainframe Programming Essentials Guide | PDF | Byte - Scribd
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Resolves external references, merges control blocks, and builds an executable load module in a load library. Mainframe Programming Essentials Guide | PDF | Byte
JCL is the command language for the z/OS operating system, acting as the essential interface between application programs and the system. It's how you tell the mainframe what to do, when to do it, and what resources to use. A "Part 2" refresher would break down the core components of a JCL: merges control blocks