osx man page for ipcrm

ipcrm(1)						    BSD General Commands Manual 						  ipcrm(1)

NAME
     ipcrm -- remove the specified message queues, semaphore sets, and shared memory segments

SYNOPSIS
     ipcrm [-M shmkey] [-m shmid] [-Q msgkey] [-q msqid] [-S semkey] [-s semid] ...

DESCRIPTION
     Ipcrm removes the specified message queues, semaphores and shared memory segments.  These System V IPC objects can be specified by their cre-
     ation id or any associated key.

     The following options are used to specify which IPC objects will be removed.  Any number and combination of these options can be used:

     -M shmkey
	     Mark the shared memory segment associated with key shmkey for removal.  This marked segment will be destroyed after the last detach.

     -m shmid
	     Mark the shared memory segment associated with id shmid for removal.  This marked segment will be destroyed after the last detach.

     -Q msgkey
	     Remove the message queue associated with key msgkey from the system.

     -q msqid
	     Remove the message queue associated with the id msqid from the system.

     -S semkey
	     Remove the semaphore set associated with key semkey from the system.

     -s semid
	     Removes the semaphore set associated with id semid from the system.

     The identifiers and keys associated with these System V IPC objects can be determined by using ipcs(1)

SEE ALSO
     ipcs(1)

BSD
								  August 8, 1994							       BSD