Hi,

I tried to make as script that would take as input two one-columned files. And output those rows that are existent in one but not in the other. This is what I got. For some reason it'll stop its work at the first row. What did I miss?

#!/usr/bin/perl -w
use strict;
use warnings;
use Data::Dumper;
#kaks üheveerulist faili, prindib need veerud mis ühes on aga teises p
+ole
#ehk siis suurem fail miinus väiksem
my $num_args = $#ARGV + 1;
if ($num_args != 3) {
  print "\nUsage: ./lahutaja suurem väiksem vahe(output)\n";
  exit;
}
my $f=$ARGV[0];
my $qa=$ARGV[1];
my $out=$ARGV[2];
open  FA, "< $fasta"or die "Can't open $f: $!";
open  QA, "< $quala" or die "Can't open $q: $!";
open  OUT,"> $out" or die "Can't open $out: $!";
     


my @bl = <QA>;
my @a = <FA>;
my %h;

@h{@bl} = @bl;
my @output=[grep {!exists $h{$_}} @a];

print Dumper @output ;
print OUT  @output;



close FA;
close QA;
close OUT;

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In reply to get difference of two arrays by naturalsciences

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