Copyright (c) 1994 Adam Glass
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$NetBSD: ipcrm.1,v 1.10 2008/05/31 14:27:39 christos Exp $
.Dd May 31, 2008 .Dt IPCRM 1 .Os .Sh NAME .Nm ipcrm .Nd remove the specified message queues, semaphore sets, and shared memory segments .Sh SYNOPSIS .Nm .Op Fl M Ar shmkey .Op Fl m Ar shmid .Op Fl Q Ar msgkey .Op Fl q Ar msqid .Op Fl S Ar semkey .Op Fl s Ar semid .Ar ... .Sh DESCRIPTION .Nm removes the specified message queues, semaphores, and shared memory segments. These System V IPC objects can be specified by their creation ID or any associated key.
p The following options are used to specify which IPC objects will be removed. Any number and combination of these options can be used: l -tag -width indent t Fl M Ar shmkey Mark the shared memory segment associated with key .Ar shmkey for removal. This marked segment will be destroyed after the last detach. t Fl m Ar shmid Mark the shared memory segment associated with ID .Ar shmid for removal. This marked segment will be destroyed after the last detach. t Fl Q Ar msgkey Remove the message queue associated with key .Ar msgkey from the system. t Fl q Ar msqid Remove the message queue associated with the ID .Ar msqid from the system. t Fl S Ar semkey Remove the semaphore set associated with key .Ar semkey from the system. t Fl s Ar semid Removes the semaphore set associated with ID .Ar semid from the system. .El
p If the .Ar id or .Ar key argument is .Dq all then all entries of the appropriate type are removed.
p The identifiers and keys associated with these System V IPC objects can be determined by using .Xr ipcs 1 . .Sh SEE ALSO .Xr ipcs 1 , .Xr shmat 2 , .Xr shmctl 2 , .Xr shmdt 2 , .Xr shmget 2