Few tools to make life easier :)

1) Transfert_log_NT2Unix

If you are running your server on a NT but want to compute the stats
on Unix, you'll need to send the logfile to your Unix account.

2) Transfert_log_Unix2Unix

Same but both server are using Unix. Your provider is using a Unix server
but you can't compute stats on their server (CPU limit). So best
is to download your logfile on a daily basis and then run the stats on
your own computer

3) clean_log.pl

Your logfile is too huge and take too much time to analyse. This script
will remove some entries and make logfiles lighter.

4) squeezelog.sh

To compress your current logfile each month to save disk space.

5) all2daily_logfile.sh

This script will split a webserver logfile from all-in-one format (access_log) into seperate daily logs (ex. access_010613.log)

6) maillog2commonlog.pl

This script converts mail logs in sendmail, postfix, smail or qmail format to 
the common log format. Joey Hess, freeware.

7) access_referer_agent2combined.pl

Perl script that converts a directory of common log format (CLF) access-files, referer-files and agent-files to a single combined.log This is usefull if you have seperate access/referer/agent logfiles and want to use all features of a loganalyzer that require a combined log file.