rotatelogs - rotate Apache logs without having to kill the server
rotatelogs logfile rotationtime
rotatelogs is a simple program for use in conjunction with Apache’s piped logfile feature which can be used like this:
TransferLog "|rotatelogs /path/to/logs/access_log 86400"
This creates the files /path/to/logs/access_log.nnnn where nnnn is the system time at which the log nominally starts (this time will always be a multiple of the rotation time, so you can synchronize cron scripts with it). At the end of each rotation time (here after 24 hours) a new log is started.
logfile
The path plus basename of the logfile. The suffix .nnnn is automatically added.
rotationtime
The rotation time in seconds.
httpd(8)