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CentOS 7.0 - man page for ipcs (centos section 1)

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IPCS(1) 				  User Commands 				  IPCS(1)

NAME
       ipcs - provide information on IPC facilities

SYNOPSIS
       ipcs [resource-option] [output-format]
       ipcs [resource-option] -i id

DESCRIPTION
       ipcs  provides  information  on	the  inter-process communication facilities for which the
       calling process has read access.

OPTIONS
       -i, --id id
	      Print details only on the resource identified by id.

       -h, --help
	      Display a help text and exit.

       -V, --version
	      Display version information and exit.

   Resource options
       -q, --queues
	      Write information about active message queues.

       -m, --shmems
	      Write information about active shared memory segments.

       -s, --semaphores
	      Write information about active semaphore sets.

       -a, --all
	      Write information about all three resources (default).

   Output formats
       Of these options only one takes effect: the last one specified.

       -c, --creator
	      Show creator and owner.

       -l, --limits
	      Show resource limits.

       -p, --pid
	      Show PIDs of creator and last operator.

       -t, --time
	      Write time information.  The time of the last control operation  that  changed  the
	      access  permissions  for all facilities, the time of the last msgsnd() and msgrcv()
	      operations on message queues, the time of the last shmat() and  shmdt()  operations
	      on shared memory, and the time of the last semop() operation on semaphores.

       -u, --summary
	      Show status summary.

   Representation
       These affect only the -l (--limits) option.

       -b, --bytes
	      Print sizes in bytes.

       --human
	      Print sizes in human-readable format.

SEE ALSO
       ipcrm(1),   ipcmk(1),  msgrcv(2),  msgsnd(2),  semget(2),  semop(2),  shmat(2),	shmdt(2),
       shmget(2)

CONFORMING TO
       The Linux ipcs utility is not fully compatible to the POSIX ipcs utility.  The Linux  ver-
       sion  does  not	support  the  POSIX -a, -b and -o options, but does support the -l and -u
       options not defined by POSIX.  A portable application shall not use the -a,  -b,  -o,  -l,
       and -u options.

AUTHOR
       Krishna Balasubramanian <balasub@cis.ohio-state.edu>

AVAILABILITY
       The  ipcs  command  is  part  of the util-linux package and is available from Linux Kernel
       Archive <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.

util-linux				   January 2013 				  IPCS(1)
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