Thanks for the answer(s).
definitely the colum is there. It is a middle column and I am getting the error literally thousandtimes (every line I guess).

The part causing troubles is:

foreach my $id (@ids) {

       if ($id eq $NSC) {
           print MY $line;
       }
    }

[download]
and the uninitialized value is *** $id. ***. And it causes the error, I get the result but probably because thousands of error messages it takes longer time. Could the error be caused by the fact that i declared my @ids=()? I will check those libraries definitely, but it would take a begginer some time, so I am still seeking my error. Tx. to all karpatov

In reply to Re^2: Uninitialized value in string eq error but I initialized by Anonymous Monk
in thread Uninitialized value in string eq error but I initialized by karpatov

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