ipcs

ipcs is a Unix and Linux command to list System V InterProcess Communication System's API kernel entities to stdout. System V IPC kernel entities are:

• Shared memory segments
• Message queues
• Semaphore arrays

On Linux, the

Theipcs command has also been ported to the IBM i operating system.

• List of Unix commands
• ipcrm

• ipcs – Shell and Utilities Reference, The Single UNIX Specification, Version 5 from The Open Group