ipcrm - Remove interprocess communication identifier

Synopsis

ipcrm [-m shmid] [-M shmkey] [-q msgid] [-Q msgkey] [-s semid] [-S semkey]

Description

The ipcrm utility removes an interprocess communication (IPC) entry if the caller has the necessary authority to the IPC entry. The caller can specify an entry either by the key or by the identifier. The caller can remove multiple entries at once.

Options

-M shmkey

Remove the shared memory segment with the specified key.

-m shmid

Remove the shared memory segment with the specified id.

-Q msgkey

Remove the message queue with the specified key.

-q msgid

Remove the message queue with the specified id.

-S semKey

Remove the semaphore set with the specified key.

-s semid

Remove the semaphore set with the specified id.

Operands

There are no operands.

Exit status

• 0 on success
• >0 if an error occurs

Examples

• Remove a semaphore with key 1283 and a message queue with id 10:

  
  ipcrm -S 1283 -q 10