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ipcrm(1)
remove a message queue, semaphore set, or shared memory ID
From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.
NAME
ipcrm - remove a message queue, semaphore set, or shared memory ID
SYNOPSIS
ipcrm [ options ]
DESCRIPTION
ipcrm removes one or more messages, semaphores, or shared memory identifiers. The identifiers are specified by the following options:
-q msqid Remove the message queue identifier msqid from the system and destroy the message queue and data structure associated with it.
-m shmid Remove the shared memory identifier shmid from the system. The shared memory segment and data structure associated with it are destroyed after the last detach.
-s semid Remove the semaphore identifier semid from the system and destroy the set of semaphores and data structure associated with it.
-Q msgkey Remove the message queue identifier, created with key msgkey, from the system and destroy the message queue and data structure associated with it.
-M shmkey Removes the shared memory identifier, created with key shmkey, from the system. The shared memory segment and data structure associated with it are destroyed after the last detach.
-S semkey Remove the semaphore identifier, created with key semkey, from the system and destroy the set of semaphores and data structure associated with it.
The details of the removes are described in msgctl(2), shmctl(2), and semctl(2). Use the ipcs command to find the identifiers and keys.
SEE ALSO
ipcs(1). msgctl(2), msgget(2), msgop(2), semctl(2), semget(2), semop(2), shmctl(2), shmget(2), shmop(2) in the Programmer's Reference Manual.