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Input from JCL to REXX


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shr_amar
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PostPosted: Tue Jun 09, 2009 1:17 pm
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Hello All ,

I have one requirement to pass a value to REXX from JCL . I don't know if symbolic parameter works in REXX.

In my JCL i am executing a REXX . where i need to pass a value from JCL .

Can any one please tell me who to use symbolic parameters in JCL .

Thanks In advance
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expat

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PostPosted: Tue Jun 09, 2009 1:33 pm
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Please do not start a new thread on the back of an existing one.

Have you searched the forum, because this topic has been discussed numerous times recently.
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genesis786

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PostPosted: Tue Jun 09, 2009 1:43 pm
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one way could be:

first few lines of your rexx are like:

Code:

/* rexx called MYREXX*/

parse arg parm1 parm2 parm3 ....



and jcl looks like:

Code:

//STEP1 EXEC PGM=IKJEFT01
//SYSEXEC DD DSN=xx.xx.xx
//..
//SYSIN DD *
   %MYREXX PARM1 PARM2 PARM3 ....
/*
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shr_amar
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PostPosted: Tue Jun 09, 2009 2:09 pm
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Yes i have tried to search the forum . But it does not talk about symbolic.

I want to use symbolic parameter like

Date=*****
TIME=*****

And this value ****** i need to get in to the REXX.

This will help user to understand what parameter we are passing
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expat

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PostPosted: Tue Jun 09, 2009 2:19 pm
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Is it a set date / time or the current date / time ?
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genesis786

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PostPosted: Tue Jun 09, 2009 2:22 pm
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why would you want to pass current date and time from JCL when you can use DATE() and TIME() functions in rexx ? any specific requirement?
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shr_amar
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PostPosted: Tue Jun 09, 2009 2:26 pm
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well this is not a date i have just given example . It may be name
NAME=*****.
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genesis786

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PostPosted: Tue Jun 09, 2009 2:29 pm
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how are you running rexx from the jcl ? can you paste something here ? does above example not suit your purpose ?
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expat

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PostPosted: Tue Jun 09, 2009 2:46 pm
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shr_amar wrote:
well this is not a date i have just given example . It may be name
NAME=*****.

Well, perhaps if you talked about the actual requirement rather than a hypothetical requirement the responses given would be
(a) Helpfull
(b) Not wasting bandwidth on the forum
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shr_amar
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PostPosted: Tue Jun 09, 2009 3:12 pm
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I AM EXECUTING A JCL WHICH CALL A REXX PROGRAM TO SUBMIT MULTIPLE JOBS BASED ON THE RETURN CODE.

PGM=IKJEFT1B,DYNAMNBR=30,PARM=TRAMREGT

TRAMREGT IS THE REXX PROGRAM .

THE REQUIREMENT IS VERY SIMPLE AS WE USE TO PASS SYMBOLIC PARAMETER FROM JCL TO PROC , I WANT IT TO PASS FROM JCL TO REXX

E.G

JOB1 ==> MAIN JOB WHICH EXECUTE REXX PROGRAM TO SUBMIT OTHER JOB'S (JOB2,JOB3)
JOB2==> IS THE JOB WHICH HAVE SOME SYMBOLIC PARAMETER DEFINED .
I WANT TO PASS THIS PARAMETER FROM JOB1==>REXX==> JOB2.

I HOPE I AM CLEAR .
LET ME KNOW IF YOU ARE LOOKING FOR MORE INFO
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prino
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PostPosted: Tue Jun 09, 2009 3:22 pm
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Don't shout!

Are you building your own job scheduler???
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shr_amar
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PostPosted: Tue Jun 09, 2009 3:39 pm
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Its nothing related to job scheduler . Its just passing data from JCl to REXX using symbolic parameter
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prino
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PostPosted: Tue Jun 09, 2009 3:48 pm
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shr_amar wrote:
I AM EXECUTING A JCL WHICH CALL A REXX PROGRAM TO SUBMIT MULTIPLE JOBS BASED ON THE RETURN CODE.


In other words, jour own little job-scheduler.

There are real products around that do this job!
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expat

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PostPosted: Tue Jun 09, 2009 3:52 pm
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Quote:
I AM EXECUTING A JCL WHICH CALL A REXX PROGRAM TO SUBMIT MULTIPLE JOBS BASED ON THE RETURN CODE.


The return code of what ?
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shr_amar
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PostPosted: Tue Jun 09, 2009 4:00 pm
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Return code of JOB2.

But the requirement is not to make schedular .
I will try to make things more clear

E.g in my rexx i am using a variable "Var1" i want to pass value to this variable from JCL like

//REXXINS EXEC PGM=IKJEFT1B,DYNAMNBR=30,PARM=REXX
// Var1=XYZ

so when rexx is executed VAR1 should have XYZ in it
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prino
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PostPosted: Tue Jun 09, 2009 4:12 pm
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shr_amar wrote:
Return code of JOB2.


In other words, your own little job-scheduler! SIASD!
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expat

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PostPosted: Tue Jun 09, 2009 4:17 pm
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And how do you propose to collect the return code of an external job ?
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shr_amar
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PostPosted: Tue Jun 09, 2009 4:25 pm
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Hey Guys ,

Requirement is not to make schedular .
I will try to make things more clear

E.g in my rexx i am using a variable "Var1" i want to pass value to this variable from JCL like

//REXXINS EXEC PGM=IKJEFT1B,DYNAMNBR=30,PARM=REXX
// Var1=XYZ

so when rexx is executed VAR1 should have XYZ in it
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enrico-sorichetti

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PostPosted: Tue Jun 09, 2009 4:34 pm
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maybe we inferred wrong, but it was You who had specified "BASED ON THE RETURN CODE"

anyway as a general point

Code:

//procnm  PROC
//IKJ     EXEC PGM=IKJEFT01,PARM='rexxnm &PARM1 &PARM2'
//...
//        PEND
//*
//g       EXEC procnm,PARM1=aaaaaa,PARM2=bbbbbb

is equivalent to
Code:

//IKJ     EXEC PGM=IKJEFT01
//SYSTSIN   DD *
  rexxnm aaaaaa bbbbbb
//...
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genesis786

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PostPosted: Tue Jun 09, 2009 5:27 pm
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not related to this perhaps but in our shop.. some creative person developed a mini sequential scheduler using rexx. idea was something like this:

1. All the Jobs kept at one PDS

2. A dummy JCL step was built (a kind of skeleton), which would be appended to all the Jobs at the end.

3. A member in that PDS had the sequence of jobs to be run.

4. A Rexx routine which will read this schedule member and append the dummy step (#2) at the end of jcl and then submit it.

5. A dummy job to start the whole process.

icon_smile.gif not very elegant but saved a lot of time. since operations couldn't provide us a CA7 scheduler for Dev region, we used this instead.
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shr_amar
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PostPosted: Fri Jun 12, 2009 12:02 pm
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Thanks enrico,

This is working while passing data.But now i am facing one problem that while passing lowercase data it is failing as JCL error .

IEFC620I UNIDENTIFIABLE CHARACTER r ON THE EXEC STATEMENT

Code is like this
//WHRESET PROC
//REXXINS EXEC PGM=IKJEFT1B,DYNAMNBR=30,
// PARM='WAREREST &VER &WHN'

JCL

//REXX0SE EXEC WHRESET,
// VER=AS1,
// WHN=trm

if i pass WHN=TRM job executed sucessfully but with lowercase it is failing .
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expat

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PostPosted: Fri Jun 12, 2009 12:11 pm
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Lowercase is invalid in JCL
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Pedro

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PostPosted: Fri Jun 12, 2009 4:56 pm
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I am not sure, but you might try enclosing in quotes:
Code:
//REXX0SE EXEC WHRESET,
// VER=AS1,
// WHN='trm'


You did not say what &WHN will be used for, but if it will also be JCL, then you will still get an error.

Why does it have to be in mixed case?
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