On FreeBSD you can set the corefile name with the sysctl "kern.corefile", I belive there is a %something escape that substitutes PID number. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk at FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.