G'day mmittiga17,

Here's my take on a solution: 

#!/usr/bin/env perl -l

use strict;
use warnings;

my %good;

while (<DATA>) {
    my ($id, $flag) = split;
    next unless $id;
    ++$good{$id}[$flag];
}   

for (keys %good) {
    print if $good{$_}[1] && $good{$_}[3];
}   

__DATA__
3-2000/7.48 1
3-2000/7.48 2
3-2000/7.48 2
3-2000/7.48 2
3-2000/7.48 2
3-2000/7.48 2
3-2000/7.48 2
3-2000/7.48 3

4-0000/8.40 2
4-0000/8.40 2
4-0000/8.40 2
4-0000/8.40 2
4-0000/8.40 2
4-0000/8.40 2
4-0000/8.40 3

[download]

Sample run:

$ pm_id_flag_validation.pl
3-2000/7.48

[download]

-- Ken

In reply to Re: validating file with perl by kcott
in thread validating file with perl by mmittiga17

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