On Tue, 6 Apr 2010, Antti Harri wrote:
quoted text
> OK. How do I reliably get month and year out of the file?

awk will work for that and for massaging archived logs.  That's also the 
kind of task perl is best at.

Another option is to reconfigure the log file format.  The regular Apache 
format
 	LogFormat "%h %l %u %t \"%r\" %>s %b" common

can be replaced with something much, much easier to parse.  For example:

 	LogFormat "%h\t%l\t%u\t%t\t\"%r\"\t%>s\t%b" common

Because connections or transactions take a while to complete, tidying up 
will be necessary regardless of when the logs get rotated.

/Lars