P4DCTL is a tool that allows the administrator to describe and control all the Perforce services running on a unix machine in a single textual config file and allows root and non-root users to start and stop the services (as permissions allow).
P4DCTL can be used to manage the Perforce Server (p4d), Proxy (p4p), Broker (p4broker), FTP daemon (p4ftpd) and the Perforce Web client (p4web).
P4DCTL is used as part of the Perforce Server RPM/DEB packages for linux (http://package.perforce.com/)
For more information, please see the manpage for p4dctl and p4dctl.conf.
For assistance, please contact Perforce Support (support@perforce.com)