%hash = map { $_ => 1 } @metadata_tags;
        $_ .= exists $hash{$1};

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I have created a hash of tags. I have appended the $_ if tag exists in an array. But still it doesnot concatenate

In reply to Re^6: Read the lines until a string exists in the array by Anonymous Monk
in thread Read the lines until a string exists in the array by Anonymous Monk

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