How to split existing apache logfile by month?

Question

How can one split existing apache logfiles into separate files by month?

I\'ve scoured the web and I can\'t find anything. Yes, I know about logrotate and cronolog and

Answer 1

One way using awk:

awk '{ split($4,array,"/"); print > array[2] ".txt" }' file.txt

This will output files like:

May.txt
June.txt
July.txt
etc

EDIT:

Perhaps you would like to keep the years separate:

awk '{ split($4,array,"[:/]"); print > array[2] array[3] ".txt" }' file.txt

This will output files like:

May2011.txt
May2012.txt
July2011.txt
etc