JCL (Job Control Language) is a sort of scripting tool for running jobs in the batch-oriented z/OS and z/VSE operating systems. I don't believe there are any other OSes that use such a concept (the only others I've seen were on NCR's Century and Criterion OSes). z/OS and z/VSE applications are typically designed as series of relatively simple programs that are sort of 'pipe'd together with JCL, which defines the files that each program step uses and controls the sequence of steps depending on the return codes produced by each program. Another IBM operating system, z/VM CMS, uses a scripting language called Rexx to do this; Rexx is more like bash. Unless he works on one off IBM's z/OS or z/VSE systems, Martin will not need to know JCL. Leslie On Sunday 26 July 2015 20:08:43 Patrick wrote: > On 07/26/2015 08:36 PM, Kevin Monceaux wrote: > > On Sun, Jul 26, 2015 at 07:24:26PM -0400, Patrick wrote: > >> I asked about JCL once and the basic answer was DON'T. It appears to be > >> a language that was used to make up for shortcomings in OS that don't > >> exist now. > > > > Really? I work as an IBM mainframe operator and JCL is still used under > > z/OS today, not to mention z/VSE. > > Hi Kevin > > Martin should not take my word for it, I only asked because I know so > little about JCL. > > Would it be good for Martin to learn? > > -Patrick > > > > --------------------------------------------------------------------------- >--- _______________________________________________ > open-cobol-list mailing list > open-cobol-list@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/open-cobol-list -- A Caution to Everybody Consider the Auk; Becoming extinct because he forgot how to fly, and could only walk. Consider man, who may well become extinct Because he forgot how to walk and learned how to fly before he thinked. -- Ogden Nash ------------------------------------------------------------------------------ _______________________________________________ open-cobol-list mailing list open-cobol-list@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/open-cobol-list
