How do you grep line by line?

I suppose grep does the same  like I suggested before, reading large chunks into memory and trying to match multiple lines at once.

Another option is to fork into four child's each processing a quarter to use the full power of your machine.

And btw using lexical variables declared with my should help a little too.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^3: How to optimize a regex on a large file read line by line ? by LanX
in thread How to optimize a regex on a large file read line by line ? by John FENDER

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