AWStats
Installation (on Ubuntu and Debian)
apt-get install awstats
History files live here:
/var/lib/awstats/
Config files live here:
/etc/awstats/
Cron job looks like this:
/opt/awstats/wwwroot/cgi-bin/awstats.pl -update -config=www.allaboutwatersheds.org
To flush and re-run awstats
delete files from /var/lib/awstats/ and re-run the perl script

