IPCRM(1)            RISC/os Reference Manual             IPCRM(1)



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.






                        Printed 11/19/92                   Page 1