ipcrm(1)          (Interprocess Communication Utilities)           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.











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