use Fatal qw/open/;
my %h;
open my $fh, '<', '/tmp/file1';
while ( defined ($_ = <$fh>)){
  /^([\d.]+)/ and $h{$1}++;
}
open  $fh, '<', '/tmp/file2';
while ( defined ($_ = <$fh>)){
  /^([\d.]+)/ and delete $h{$1};
}
print join "\n", keys %h;

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Boris

In reply to Re: comparing two arrays by borisz
in thread comparing two arrays by Anonymous Monk

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