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Re:Learning COBOL: A Journey for the Modern Programmer by slowmotiony on Wednesday April 07, 2021 @01:59PM (#26728472)
Does anyone know of any good resources for learning basics of JCL, datasets, jobs, the z/OS Host and so on? I find that when I look at the screens of my mainframe colleagues, the COBOL code is actually the only thing I can wrap my head around, as opposed to all the weird mainframe tools built around it.
Re:Learning COBOL: A Journey for the Modern Programmer by hindsightbias on Wednesday April 07, 2021 @03:37PM (#26729992)
https://www.ibm.com/it-infrastructure/z/education

See the train for no cost or fee links at the bottom. I know ISVs and BPs can get 5-day lab courses for free but IDK about the general public.

Re:Learning COBOL: A Journey for the Modern Programmer by mathgorges on Wednesday April 07, 2021 @03:21PM (#26729734)
Theres almost certainly a more direct route, but I learned most of these things (not really JCL) by learning HLASM from this resource:

http://csc.columbusstate.edu/woolbright/WOOLBRIG.htm

Re:Learning COBOL: A Journey for the Modern Programmer by chasil on Wednesday April 07, 2021 @04:58PM (#26731161)
I don't know anything about IBM operating systems, but I understand that older versions of System/370 are free and can be run on PCs via this famous emulator:

http://www.hercules-390.eu/

IBM absolutely hates that software.

Re:Learning COBOL: A Journey for the Modern Programmer by jdcaballerov on Wednesday April 07, 2021 @02:03PM (#26728539)
the videos on the resources cover JCL and other tools.