command to check status of message queue and shared memory in linux?

Question

Sorry to ask such a silly question as i am noob in unix. what are the unix commands to find shared memory and message queue and how to kill them ?

Solution

ipcs(1) provides information on the IPC facilities and ipcrm(1) can be used to remove the IPC objects from the system.

List shared memory segments:

ipcs -m

List message queues:

ipcs -q

Remove shared memory segment created with shmkey:

ipcrm -M key

Remove shared memory segment identified by shmid:

ipcrm -m id

Remove message queue created with msgkey:

ipcrm -Q key

Remove message queue identified by msgid:

ipcrm -q id