What I am trying to do is leverage the speed of grep to complete the task. The data files are huge and I have found that grep is significantly faster than even running the files through an empty Perl loop.

The fastest current implementation I have found is using grep with the context (50) option to get 50 lines around the match, then use a loop in Perl just as you have shown to parse that data. I was wondering if this line idea might even be faster and more efficient, if I can only find a better way to get the line numbers of headers around the match.

In reply to Re: search array for closest lower and higher number from another array by bigbot
in thread search array for closest lower and higher number from another array by bigbot

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