ipcrm(1)                 USER COMMANDS                   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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