Thanks a lot for detailed explanation

I have one more question.I am trying to run the above script on a file 125000 lines and output the hash to a text file.I keep getting "Out of memory!" message,is there something that can be done about it?

In reply to Re^2: Constructing a hash - why isn't my regex matching anything by perl_mystery
in thread Constructing a hash - why isn't my regex matching anything by perl_mystery

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