Web Servers on Unix and Linux - Combining common, referer and agent logs for one Apache server

Author

Combining common, referer and agent logs for one Apache server

karmarepoco@gmail.com

2006-07-27, 7:19 pm

An Apache server here at work keeps logs not as a single file but in
this three file format: common, referer and agent. The logs are
cumbersome to work with but contain a lot of valuable old information.
I'd like to find a way to combine them into the combined format:

"%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

Whereas right now they look like:

"%h %l %u %t \"%r\" %>s %b" common
"%{Referer}i -> %U" referer
"%{User-agent}i" agent

Is there any good way of doing this? I've seen this question posted
online before but never with a definitive answer.