How to make awstats process old log files

http://awstats.sourceforge.net/docs/awstats_faq.html#OLDLOG

/usr/lib/cgi-bin/awstats.pl -update -config="www.domain.com" -LogFile="/usr/local/awstats/tools/logresolvemerge.pl /var/log/httpd/access_log* |"