IPCRM(1) | General Commands Manual | IPCRM(1)

# NAME

`ipcrm` — remove the specified message queues, semaphore sets, and shared memory segments

# SYNOPSIS

`ipcrm` | [`-M` shmkey] [`-m` shmid] [`-Q` msgkey] [`-q` msqid] [`-S` semkey] [`-s` semid] ...

# DESCRIPTION

`ipcrm` removes the specified message queues, semaphores, and shared memory segments. These System V IPC objects can be specified by their creation ID or any associated key.

The options are as follows:

`-M` shmkey
  Mark the shared memory segment associated with key `shmkey` for removal. This marked segment will be destroyed after the last detach.
`-m` shmid
  Mark the shared memory segment associated with ID `shmid` for removal. This marked segment will be destroyed after the last detach.
`-Q` msgkey
  Remove the message queue associated with key `msgkey` from the system.
`-q` msqid
  Remove the message queue associated with the ID `msqid` from the system.
`-S` semkey
  Remove the semaphore set associated with key `semkey` from the system.
`-s` semid
  Removes the semaphore set associated with ID `semid` from the system.

The identifiers and keys associated with these System V IPC objects can be determined by using ipcs(1).

# EXIT STATUS

The `ipcrm` utility exits 0 on success, and >0 if an error occurs.

# SEE ALSO

ipcs(1)

# STANDARDS

The `ipcrm` utility is compliant with the X/Open System Interfaces option of the IEEE Std 1003.1-2008 (“POSIX.1”) specification.

September 9, 2015 | Debian