title: Ipcs
text: # 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
  
  ## Implementations
  
  On Linux, the ipcs command is provided by the util-linux package.
  
  The ipcs command has also been ported to the IBM i operating system.
  
  