Pass value from Rexx to JCL

kavya123 · New User Joined: 11 Jul 2007 Posts: 34 Location: hyderabad

I have a requirement to pass information from REXX to JCL.

To make the requirement more clear

I have a file HLQ.FIRST and I need to create a new file HLQ.SECOND with all the units same except record length.
I want the lrec of second file to be Lrec of 1st file + some variable (20 or 50 for example).

So I am getting the record length of the 1st file from REXX and want to add it to lrec of second file
I want the creation of 2nd file only by JCL and not through REXX.

Hope the requirement is clear.
Could someone please help me out?

superk · Posted: Tue Apr 29, 2008 5:56 pm

OK. I'm not clear to what your problem or question is. Your process seems to be rather straight-forward.

Craq Giegerich · Posted: Tue Apr 29, 2008 6:01 pm

Passing data from a step back to the job stream has been discussed many times, the only thing you can pass back to the job stream from a step is a return code.

superk · Posted: Tue Apr 29, 2008 6:05 pm

Maybe I'm reading more into this topic than was intended. I'm thinking that the O/P is going to create and submit the JCL from this REXX exec to create and catalog the dataset as per the requirements. Or, in my opinion a better process, to create SORT SYSIN records for a subsequent step that copies the exisiting dataset to a new dataset with the record length modified.

expat · Posted: Tue Apr 29, 2008 6:06 pm

But you could invoke ISPF to use a skeleton to create and submit a batch job

kavya123 · New User Joined: 11 Jul 2007 Posts: 34 Location: hyderabad

superk,

I will make my problem more clear.

I want to create a flat file using a jcl.
when i submit the jcl for the first time the lrec of newly created file should be 80 say( i have hardcoded 80 in my jcl). i am using this flat file in my rexx program.
That will be fine.
the program is over.

When i used the same rexx exec next time then
i want to create the flat file again now lrec should be 80+x
where x is a value that differs each time and it will be present in the rexx exec.

i want to pass that x value in rexx ecex to jcl.
is that possible???

kavya123 · New User Joined: 11 Jul 2007 Posts: 34 Location: hyderabad

So,

From the above discussion can i conclude saying that

superk · Posted: Tue Apr 29, 2008 6:18 pm

Correct.

kavya123 · New User Joined: 11 Jul 2007 Posts: 34 Location: hyderabad

Thank you Superk, Expert and Craq Giegerich.

Anuj Dhawan · Posted: Wed Apr 30, 2008 9:53 am

He is "expat" not 'expert' but it's a kinda good name..

P.S.: (..just peeping into the thread..)

UmeySan · Posted: Wed Apr 30, 2008 4:34 pm

Hi kavya123 !

But you could store the LRECL in a variable in profile pool. So at the next use, you could read and modify the Lrecl. Then you could use FileTailoringServices for Skeleton-JCL.

Regards, UmeySan

Paruchuri sujatha · New User Joined: 19 Dec 2007 Posts: 7 Location: Hyderabad

Hi all,
Please help me, i have a requirement in REXX where i have to delete the datasets for region refresh. can i pass variable(contains dataset name) from rexx to a jcl, and this jcl is written in the same rexx code.

Thanks,
Ameer

superk · Posted: Sat Jul 26, 2008 11:06 pm

Yes, you can use any standard acceptable JCL variable.

dick scherrer · Posted: Sat Jul 26, 2008 11:08 pm

Hello Ameer,

Did you read all of the entries in this topic? If not, read them. If yes, please re-read them for better understanding. . .

You cannot directly pass information (other than return-code) from your code to "jcl".

You could use File Tailoring (mentioned above) or you could create new jcl to be submitted thru the internal reader (many examples in the forum).