You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.
Specify the maximum age for log files.
$ dpconf set-access-log-prop -h host -p port max-age:duration |
where duration includes a unit of days (d), weeks (w), or months (M). For example, to delete backup log files older than five days, use this command:
$ dpconf set-access-log-prop -h host1 -p 1389 max-age:5d |