This can be done using a hash.
#!/usr/bin/env perl
use strict;
use warnings;
open my $fh, '<', 'test_file.txt' or die 'Can not open file';
my %data;
while(<$fh>){
chomp $_;
my ($key, $val) = split(/\|/, $_);
$data{$key} += $val;
}
foreach my $key ( sort { $a <=> $b } keys %data ){
print "the total is: (".$data{$key}.")\n";
}
exit;
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<small> <strike> <strong>
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<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
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intervention).
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or How to display code and escape characters
are good places to start.
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