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Re:Getting Unique Counts From a Log File by jonjenk on Saturday June 22, 2013 @10:16PM (#5926002)
There is a great wiki book on this subject.

http://en.wikibooks.org/wiki/Ad_Hoc_Data_Analysis_From_The_U...

Re:Getting Unique Counts From a Log File by pessimizer on Saturday June 22, 2013 @11:09PM (#5926095)
Hopefully you've already submitted this, because I'm about to. Looks great.