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Remove duplicates from a file after the Nth duplicate

 
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Achutha

New User


Joined: 21 Oct 2009
Posts: 2
Location: India

PostPosted: Wed Oct 21, 2009 9:00 pm    Post subject: Remove duplicates from a file after the Nth duplicate
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Hi ,

I have a file as below :
AA
BB
BB
CC
CC
CC
CC

DD
DD
DD
DD

EE

If any record is duplicated more than three times I want to remove it.
The output file should be ( remove fouth occurence of CC and DD)
AA
BB
BB
CC
CC
CC
DD
DD
DD
EE
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vasanthz

Global Moderator


Joined: 28 Aug 2007
Posts: 1504
Location: Chennai

PostPosted: Wed Oct 21, 2009 9:39 pm    Post subject:
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Hi,

You can try using the below JCL.


Code:
//STEP1 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN DD DSN=input file
//OUT DD DSN=output file
//TOOLIN DD *
SELECT FROM(IN) TO(OUT) ON(1,2,CH) FIRST(3)
/*


It shud do the job I guess. icon_smile.gif

Thanks & Regards,
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Achutha

New User


Joined: 21 Oct 2009
Posts: 2
Location: India

PostPosted: Wed Oct 21, 2009 9:59 pm    Post subject:
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Hi Vasanth,

Thanks a lot.It is working.

Achutha
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