UNIX for Dummies Questions & Answers

Hi All ,

I am trying to run a shell script through a JCL . The requirement is I have a gdg base name and I need to create a script that will just check if the latest version of that gdg has data or not . If it doesnt have data RC 4 need to be returned . One more thing which is bothering me is i need to pass a parameter from the JCL to that script that will be appended at the end of the file . Let me be more clear .

Suppose the file name is PRODGA.GL.DTL&PARM

This would be the JCl :

Code:

 
//SD138110 JOB ('ACCT000000','SUMIT'),MSGLEVEL=(1,1),
// CLASS=0,MSGCLASS=X
//*******************************************************************
//* CHECKS FOR THE EXISTENCE OF GDG *
//*******************************************************************
//STEP01 EXEC PGM=GDGCHK,PARM='TEST'
//SYSPRINT DD SYSOUT=X
//SYSTSPRT DD SYSOUT=*
//*

So the Script GDGCHK needs to check for the file PRODGA.GL.DTLTEST_00 (latest version) for the data ....something like

Code:

 
#!/bin/ksh 
$a = "PRODGA.GL.DTL$PARM_00" /// syntax would be changed 
echo "$a" //// jus for checking if PRODGA.GL.DTL$PARM is getting converted to PRODGA.GL.DTLTEST
if [ ! -s $a ];then
echo "**** ERROR - FILE EMPTY ****"
exit 4
fi;
exit

Any sort of help is appreciated and pls let me know if i can provide you guys with some more details which might be needed here.

Thanx in advance ,
Sumit

At first glance, I'd say you should start by changing the assignment to 'a' to not use a $ dereference

Code:

a = "PRODGA.GL.DTL$PARM_00" /// syntax would be changed

You may also need to put your PARM variable name in braces to identify where the var name ends.

Code:

PRODGA.GL.DTL${PARM}_00