If I read your code correctly, you only need this:

foreach (@data_in) {
  chomp;
  $strSpec_protein_hash{$_} = $goodProteins_hash{$_};
}

[download]

This is exactly what hashes are good at and your loop is in a way removing that advantage again ;-)

In reply to Re: search and extract from a large hash by jethro
in thread search and extract from a large hash by reubs85

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