Thanks for the input - you're right, it's inefficient, I will follow Corian's advice and read the file into a hash.

But what really confused me is that the warning referenced the interface file and not the actual data file that the undef field was parsed from...

In reply to Re^2: filehandle in warning not what I expected... by spstansbury
in thread filehandle in warning not what I expected... by spstansbury

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