Ron,

If both input files have the same DCB properties , the solution posted by 
Norbert Friemel will work. It also assumes that you do NOT have non 
matching duplicates. If the files have different DCB's or have non 
matching duplicates then you can use the following DFSORT JCL

//STEP0100 EXEC PGM=SORT 
//SYSOUT   DD SYSOUT=* 
//INA      DD * 
----+----1----+----2----+----3----+----4----+----
100000038  004366456 
100000039  494165545 
100000040  497228431 
100000041  408506918 
//INB      DD * 
100000038  4366456 
100000039  494165545 
100000040  497228431 
100000041  408506918 
100000041  408506912 
//SORTOUT  DD SYSOUT=* 
//SYSIN    DD * 
  OPTION COPY 
  JOINKEYS F1=INA,FIELDS=(1,9,A,12,9,A) 
  JOINKEYS F2=INB,FIELDS=(1,9,A,12,9,A) 
  JOIN UNPAIRED,F2,ONLY 
//* 
//JNF1CNTL DD * 
  INREC OVERLAY=(12:12,9,UFF,M11,LENGTH=9) 
//* 
//JNF2CNTL DD * 
  INREC OVERLAY=(12:12,9,UFF,M11,LENGTH=9) 
//* 


Sri Hari Kolusu
DFSORT Development
IBM Corporation

IBM Mainframe Discussion List <[email protected]> wrote on 
10/17/2012 02:15:13 AM:

> From: Ron Thomas <[email protected]>
> To: [email protected], 
> Date: 10/17/2012 02:15 AM
> Subject: sort jcl
> Sent by: IBM Mainframe Discussion List <[email protected]>
> 
> Hello.
> 
> I have 2 files, I need to compare using DFSORT. Could someone please
> let me know how we  can acheive?
> 
> File-1
> 
> 100000038  004366456
> 100000039  494165545
> 100000040  497228431
> 100000041  408506918
> 
> File-2
> 
> 100000038  4366456
> 100000039  494165545
> 100000040  497228431
> 100000041  408506918
> 100000041  408506912
> 
> Output file
> 100000041  408506912
> 
> Regards
> Ron T
> 
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