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My guess is that a few of the input rows are simply not of the same syntax as the others (or some values are missing).

From your quite long post I didn't quite understand which value is undefined, but if you have identified it, do something like

use Data::Dumper; $Data::Dumper::Useqq = 1; # and then in the loop: unless (defined $value_that_is_sometimes_undefined) { print STDERR Dumper($whole_line); }

to see if the input line is still what you thought it was.

In reply to Re: uninitialized error by moritz
in thread uninitialized error by rufessor

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