I'm new to perl programming. I've a csv file as below. 
20100221, abc_1, 200
20100221, abc_4, 350
20100221, opq_3, 200
20100221, abc_5, 220
20100221, xyz_1, 500
20100221, abc_2, 500
20100221, abc_3, 100
20100221, xyz_2, 700
20100221, opq_2, 350
20100221, xyz_3, 100
20100221, opq_1, 230

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I'm trying to get output as below, by adding matching values: Output: 
20100221, abc, 1370
20100221, xyz, 1300
20100221, opq, 780

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I've started coding as below, but not able to continue due to lack of experience. 
use strict;
use warnings;

my $inputfilename  = $ARGV[0]; ### CSV file name. ###

open( my $in_fh, "<", $inputfilename ) or die "Can't open $inputfilena
+me : $!";

while (my $line = <$in_fh>) {
  chomp($line);
  my @columns = split(',', $line, 2);

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Could any of you help me to accomplish my requirement? Thanks and Regards / Lokesha

In reply to Summing column values by lokesha

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