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



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

SYNOPSIS
     ipcrm [ options ]

DESCRIPTION
     ipcrm will remove one or more specified messages, 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 associ-
                         ated with it.

     -m shmid            removes the shared memory identifier
                         shmid from the system.  The shared
                         memory segment and data structure asso-
                         ciated 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 sys-
                         tem.  The shared memory segment and data
                         structure associated with it are des-
                         troyed 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(2),
     shmctl(2), and semctl(2).  The identifiers and keys may be
     found 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 Programmer's



                         Printed 1/15/91                   Page 1

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



     Reference Manual.






















































 Page 2                  Printed 1/15/91