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Basic JCL concepts - IBM
Job control language (JCL) is a set of statements that you code to tell the z/OS operating system about the work you want it to perform. Although this set of statements is quite large, most jobs can be run using a very small subset. Learn about essential and most frequently used JCL statements and parameters, as well as coding techniques.
z/OS Connect - Overview | IBM
IBM z/OS Connect provides a simple and intuitive way to bring the power of APIs to your mainframe. Unlock the value of your IBM Z subsystems with truly RESTful APIs and create consumable APIs in minutes to make Z applications and data central to your hybrid cloud strategy.
COBOL - Program Structure - Tutorials Point
DISPLAY 'Executing COBOL program using JCL'. STOP RUN. The JCL to execute the above COBOL program is as follows − //SAMPLE JOB(TESTJCL,XXXXXX),CLASS = A,MSGCLASS = C //STEP1 EXEC PGM = HELLO //INPUT DD DSN = ABC.EFG.XYZ,DISP = SHR When you compile and execute the above program, it produces the following result −. Executing COBOL program ...
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COBOL - Quick Guide - Tutorials Point
The complete guide on various commands to write and execute a JCL and COBOL programs can be found at: ... XXX-ZOS. OBJECT-COMPUTER. XXX-ZOS. INPUT-OUTPUT SECTION. FILE-CONTROL. SELECT FILEN ASSIGN TO DDNAME ORGANIZATION IS SEQUENTIAL. Data Division. Data division is used to define the variables used in the program. It consists of four sections −
Downloads - Mainframe DEV
Aqua release train version IBM Explorer for z/OS Aqua (or simply Aqua) is a continuous delivery release train platform that brings together a set of Eclipse-based mainframe development tools and offerings in order to provide z/OS application developers and system programmers an easy way to install, deploy and maintain our IBM Eclipse-based products.
OS/360 and successors - Wikipedia
OS/360, officially known as IBM System/360 Operating System, is a discontinued batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964; it was influenced by the earlier IBSYS/IBJOB and Input/Output Control System (IOCS) packages for the IBM 7090/7094 [citation needed] and even more so by the PR155 Operating System for the IBM 1410 ...
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Batch processing - Wikipedia
History. The term "batch processing" originates in the traditional classification of methods of production as job production (one-off production), batch production (production of a "batch" of multiple items at once, one stage at a time), and flow production (mass production, all stages in process at once).. Early history. Early computers were capable of running only one program at a time.
Unix command line conventions over time | Hacker News
My understanding is that the name dd was essentially a joke. A DD statement in JCL defined a logical name (seen by the program) to refer to a file (`dataset'). It had many strange operands, and often its behavior was completely unintuitive. For example, here is a job that deletes the file MYFILE.
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