Some simple ipcs commands for Linux (for personal use)

1. Display all IPC facilities

# ipcs -a

2. Display all message queues Message Queue

# ipcs -q

3. Display all semaphores

# ipcs -s

4. Display all shared memory

# ipcs -m

5. Display detailed information of IPC facilities

# ipcs -q -i id

id corresponds to shmid, semid, msgid, etc. -q corresponds to the type of facility (queue), use -s to view the details of the semaphore, and use -m to view the shared memory.

6. Display the limit size of IPC facilities

# ipcs -m -l

-m corresponds to the facility type, optional parameters include -q, -m, -s.

7. Display the authority relationship of IPC facilities

# ipcs -c
# ipcs -m -c
# ipcs -q -c
# ipcs -s -c

8. Display the ID of the process that has recently accessed the IPC facility.

# ipcs -p
# ipcs -m -p
# ipcs -q -p

9. Display the last operating time of the IPC facility

# ipcs -t
# ipcs -q -t
# ipcs -m -t
# ipcs -s -t

10. Display the current status of the IPC facility

# ipcs -u