If you are using a string in your regular expression that will not change on each iteration of your loop, consider adding the /o operator like so: 
if($_ =~ /patternmatchinghere/gio)

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This will compile the regular expression only once, as opposed to once for every loop iteration. On a large amount of data, this will speed up your code significantly.

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

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