Well, COBOL can present/pass data to be used later in the job. . .
You would need to clarify what you mean by "passing data to JCL".
I too have the same question! I need to pass back a x(50) Variable value. How can we do it.
You need to explain what you mean by "pass back" . . .
If some code is going to determine some value to provide to some subsequent step(s) a simple way to do this is to write the data to a file and read it when it is needed.
Better , u can try ACCEPT clause
ACCEPT brings data INTO a program - not the other way (as was requested).
The easiest way would be to write it to a file then you can do with it what you please. Using the Linkage section is another option, but if you are doing such a thing I suspect you have a design flaw in what you are trying to accomplish.
"Using the Linkage section is another option"
Ah, no it isn't. Using the Linkage Section has nothing to do with JCL . . .