[SuperPaintMan]

You can submit jobs to JES2 from USS with a shell script. Easiest way I found was to fuse-mount a working directory, edit everything with VSCode/Vim With COBOL Extensions and have two shells, one constantly reading the output data file and another for submitting job cards.

[lokedhs]

Thanks for the information. I assume actual mainframe developers do these things. But can you do that from the environment provided to me you by master the mainframe?

On the MVS 3.8j side, I can submit a job directly via the virtual card reader and then read the results directly from the printer and feed it into Emacs. That's the most efficient way to work with Hercules but you'll be stuck with a very old version of Cobol.