#!/usr/bin/perl -l

# http://perlmonks.org/?node_id=1172420

use strict;
use warnings;

my %counter;

while(<DATA>)
  {
  chomp;
  my @parts = split /\|/;
  $counter{ join ' ', @parts[0, 4, 1] }++;
  }

for (sort keys %counter)
  {
  my @parts = split;
  print join '|', @parts[0, 1], $counter{$_}, $parts[2];
  }

__DATA__
CC225|Rosha|xyz|2221|b1
CC225|Rosha|xyz|2230|b1
CC225|Rosha|xyz|2221|b1
CC225|Rosha|xyz|2221|b1
CC225|Roshw|xyz|2222|b2
CC225|Roshw|xyz|2230|b2
CC222|Roqsha|xyz|2222|b1
CC222|Roqsha|xyz|2244|b1
CC222|Roqsh|xyz|2221|b2
CC222|Roqsh|xyz|2111|b2

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In reply to Re: Counting ID on the basis of batch by tybalt89
in thread Counting ID on the basis of batch by rohan.mohapatra47

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