This is what perl is great for.

Probably the most direct approach would be to parse each line with a regex to get the parts you care about (IE not the timestamp). Create a hash where the key is the relevant part of the line and the value is a number that you increment every time you find the same message. Notice you're not keeping the whole file in memory, just one instance of each line and a number.

--Pileofrogs

In reply to Re: How do I read a log file that contents recurring log messages those are separated by newline characters? by pileofrogs
in thread How do I read a log file that contents recurring log messages those are separated by newline characters? by WantToBeJediInPerl

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