I can't see anything wrong with your code, and 'tcf22's example looks fine too. Although I've never used it, for comparing which of a few different ways is most efficient, the 'Benchmark' module might be helpful. Do 
  perldoc Benchmark

[download]
at a command prompt to see how to use it.

HTH.

In reply to Re: Opening file and checking for data by hmerrill
in thread Opening file and checking for data by Anonymous Monk

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