Web Log Trends Analyzer provides a work-around
for a "bug" in some popular commercial Log Analyzer
products, which makes them unable to process
multiple log files for overlapping periods of time. If
you like your commercial Log Analyzer, and don't
feel like upgrading just yet, this little Perl script will
do the trick nicely. Simply specify a list of all your
log files, and it will consolidate them into a single
log file, sorted by time. The output log will work
with your commercial Log Analyzer product without
a hitch, allowing you to continue using it to
generate reports.