All Operating Systems run Programs, use Data Sets or Files, and have
some sort of Command Language.
If Z/OS Users didn't have to be concerned about DCB, SPACE and so on,
then they could write JCL that was very similar to Unix or Linux.
If all that information is stored in a Data Base of Data Sets, then it
would be quite possible to allocate new data sets when necessary, and
hide all the normal JCL information from the User.
All we would have to do is remember which order to put the file names
in, and have a program get all the DCB etc information for output data
sets, and either dynamically allocate them, or generate JCL for them.
And so, you could write a Script that looked something like this:
__________________
Payroll: Job class C Size 1000 k name c.clarke 10,3 mins acct payroll;
Validate:
Exec PayValid
Printer
Input.Trans, Trans.Action(+1); /* Validate Transations */
if Validate=0
then do;
Sort Trans.Action(+1) to Sorted.Trans.Action(+1)
Fields=(10,10,CH,A);
Update:
Exec PayUpd
Printer
Payroll.Master(0), Sorted.Trans.Action(+1),
Payroll.Master(+1);
If Update = 0
then do;
Catalog Payroll.Master(+1), Sorted.Trans.Action(+1);
Backup Payroll.Master(+1), Sorted.Trans.Action(+1);
Submit Job2;
end;
end;
else Stop 'Error in PAYROLL Job';
Such a program exists. It is called Jol.
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