IPCRM(C)                 XENIX System V                  IPCRM(C)



     Name
          ipcrm - Removes a message queue, semaphore set or shared
          memory ID.

     Syntax
          ipcrm [ options ]

     Description
          ipcrm removes one or more specified messages, a semaphore or
          shared memory identifiers.  The identifiers are specified by
          the following 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.

          The details of the removes are described in msgctl(S),
          shmctl(S), and semctl(S).  The identifiers and keys may be
          found by using ipcs(C).

     See Also
          ipcs(C), msgctl(S), msgget(S), msgop(S), semctl(S),
          semget(S), semop(S), shmctl(S), shmget(S), shmop(S)

     Note
          ipcrm cannot be used to remove semaphores created using
          creatsem(S) or to remove shared memory created using
          sdget(S).



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