LSIPC(1)							   User Commands							  LSIPC(1)

NAME

       lsipc - show information on IPC facilities currently employed in the system

SYNOPSIS

       lsipc [options]

DESCRIPTION

       lsipc shows information on the inter-process communication facilities for which the calling process has read access.

OPTIONS

       -i, --id id
	      Show  full  details  on  just  the  one  resource  element identified by id.  This option needs to be combined with one of the three
	      resource options: -m, -q or -s.  It is possible to override the default output format for this option with the --list, --raw, --json
	      or --export option.

       -g, --global
	      Show  system-wide  usage and limits of IPC resources.  This option may be combined with one of the three resource options: -m, -q or
	      -s.  The default is to show information about all resources.

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

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

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

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

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

   Output formatting
       -c, --creator
	      Show creator and owner.

       -e, --export
	      Output data in the format of NAME=VALUE.

       -J, --json
	      Use the JSON output format.

       -l, --list
	      Use the list output format.  This is the default, except when --id is used.

       -n, --newline
	      Display each piece of information on a separate line.

       --noheadings
	      Do not print a header line.

       --notruncate
	      Don't truncate output.

       -o, --output list
	      Specify which output columns to print.  Use --help to get a list of all supported columns.

       -b, --bytes
	      Print size in bytes rather than in human readable format.

       -r, --raw
	      Raw output (no columnation).

       -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(2) and msgrcv(2) operations on message queues, the time of the last shmat(2) and shmdt(2) operations on shared mem-
	      ory, and the time of the last semop(2) operation on semaphores.

       --time-format type
	      Display dates in short, full or iso format.  The default is short, this time format is designed to  be  space  efficient	and  human
	      readable.

       -P, --numeric-perms
	      Print numeric permissions in PERMS column.

EXIT STATUS

       0      if OK,

       1      if incorrect arguments specified,

       2      if a serious error occurs.

SEE ALSO

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

HISTORY

       The lsipc utility is inspired by the ipcs utility.

AUTHORS

       Ondrej Oprala <ooprala@redhat.com>
       Karel Zak <kzak@redhat.com>

AVAILABILITY

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

util-linux							   November 2015							  LSIPC(1)