Apache HTTP Server Version 2.5

The following programs are simple support programs included with the
    Apache HTTP Server which do not have their own manual pages. They are not
    installed automatically. You can find them after the configuration process
    in the support/ directory.
This perl script is designed to be run at a frequent interval by something like cron. It connects to the server and downloads the status information. It reformats the information to a single line and logs it to a file. Adjust the variables at the top of the script to specify the location of the resulting logfile.
This perl script will take a combined Web server access log file and
    break its contents into separate files. It assumes that the first field of
    each line is the virtual host identity, put there using the "%v"
    variable in LogFormat.
    
        LogFormat "%v %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\""
             combined_plus_vhost
        CustomLog logs/access_log combined_plus_vhost
    
Log files will be created, in the directory where are running the
    script, for each virtual host name that appears in the combined log file.
    These logfiles will named after the hostname, with a
    .log file extension.
The combined log file is read from stdin. Records read will be appended to any existing log files.
split-logfile < access_log