CANCEL is a DCL command that cancels wakeup requests for a specified process, including wakeup requests scheduled with either the RUN command or the $SCHDWK system service. Requires one of the following:
- Ownership of the process
- GROUP privilege to cancel scheduled wakeup requests for processes in the same group but not owned by you
- WORLD privilege to cancel scheduled wakeup requests for any process in the system
/IDENTIFICATION allows you to specify a PID.