IPCRM(1)                             SysV                             IPCRM(1)



NAME
     ipcrm - remove a message queue, semaphore set, or shared memory id

SYNOPSIS
     ipcrm [options]

DESCRIPTION
     ipcrm removes one or more specified messages, a semaphore, or shared
     memory identifiers.

OPTIONS
     -q msqid  Removes the message queue identifier msqid from the system and
               destroys the message queue and data structure associated with
               it.

     -m shmid  Removes 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  Removes the semaphore identifier semid from the system and
               destroys the set of semaphores and data structure associated
               with it.

     -Q msgkey Removes the message queue identifier, created with key msgkey,
               from the system and destroys 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 Removes the semaphore identifier, created with key semkey, from
               the system and destroys the set of semaphores and data
               structure associated with it.

     Details of the removes are described in msgctl(2), shmctl(2), and
     semctl(2).  Find identifiers and keys by using ipcs(1).

SEE ALSO
     ipcs(1).
     msgctl(2), msgget(2), msgop(2), semctl(2), semget(2), semop(2),
     shmctl(2), shmget(2), shmop(2) in the SysV Programmer's Reference.