196 lines
4.8 KiB
HTML
196 lines
4.8 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of IPCS</TITLE>
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</HEAD><BODY>
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<H1>IPCS</H1>
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Section: User Commands (1)<BR>Updated: July 2014<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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ipcs - show information on IPC facilities
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>ipcs</B>
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[options]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>ipcs</B>
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shows information on the inter-process communication facilities
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for which the calling process has read access.
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By default it shows information about all three resources:
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shared memory segments, message queues, and semaphore arrays.
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-i</B>, <B>--id</B> <I>id</I><DD>
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Show full details on just the one resource element identified by
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<I>id</I>.
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This option needs to be combined with one of the three resource options:
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<B>-m</B>,
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<B>-q</B> or
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<B>-s</B>.
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<DT id="2"><B>-h</B>, <B>--help</B><DD>
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Display help text and exit.
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<DT id="3"><B>-V</B>, <B>--version</B><DD>
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Display version information and exit.
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</DL>
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<A NAME="lbAF"> </A>
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<H3>Resource options</H3>
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<DL COMPACT>
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<DT id="4"><B>-m</B>, <B>--shmems</B><DD>
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Write information about active shared memory segments.
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<DT id="5"><B>-q</B>, <B>--queues</B><DD>
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Write information about active message queues.
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<DT id="6"><B>-s</B>, <B>--semaphores</B><DD>
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Write information about active semaphore sets.
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<DT id="7"><B>-a</B>, <B>--all</B><DD>
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Write information about all three resources (default).
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</DL>
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<A NAME="lbAG"> </A>
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<H3>Output formats</H3>
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Of these options only one takes effect: the last one specified.
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<DL COMPACT>
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<DT id="8"><B>-c</B>, <B>--creator</B><DD>
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Show creator and owner.
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<DT id="9"><B>-l</B>, <B>--limits</B><DD>
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Show resource limits.
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<DT id="10"><B>-p</B>, <B>--pid</B><DD>
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Show PIDs of creator and last operator.
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<DT id="11"><B>-t</B>, <B>--time</B><DD>
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Write time information. The time of the last control operation that changed
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the access permissions for all facilities, the time of the last
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<B><A HREF="/cgi-bin/man/man2html?2+msgsnd">msgsnd</A></B>(2)
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and
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<B><A HREF="/cgi-bin/man/man2html?2+msgrcv">msgrcv</A></B>(2)
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operations on message queues, the time of the last
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<B><A HREF="/cgi-bin/man/man2html?2+shmat">shmat</A></B>(2)
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and
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<B><A HREF="/cgi-bin/man/man2html?2+shmdt">shmdt</A></B>(2)
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operations on shared memory, and the time of the last
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<B><A HREF="/cgi-bin/man/man2html?2+semop">semop</A></B>(2)
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operation on semaphores.
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<DT id="12"><B>-u</B>, <B>--summary</B><DD>
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Show status summary.
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</DL>
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<A NAME="lbAH"> </A>
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<H3>Representation</H3>
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These affect only the <B>-l</B> (<B>--limits</B>) option.
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<DL COMPACT>
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<DT id="13"><B>-b</B>, <B>--bytes</B><DD>
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Print sizes in bytes.
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<DT id="14"><B>--human</B>
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<DD>
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Print sizes in human-readable format.
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</DL>
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?1+ipcmk">ipcmk</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+ipcrm">ipcrm</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?2+msgrcv">msgrcv</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+msgsnd">msgsnd</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+semget">semget</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+semop">semop</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+shmat">shmat</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+shmdt">shmdt</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+shmget">shmget</A></B>(2)
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<A NAME="lbAJ"> </A>
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<H2>CONFORMING TO</H2>
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The Linux ipcs utility is not fully compatible to the POSIX ipcs utility.
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The Linux version does not support the POSIX
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<B>-a</B>,
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<B>-b</B>
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and
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<B>-o</B>
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options, but does support the
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<B>-l</B>
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and
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<B>-u</B>
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options not defined by POSIX. A portable application shall not use the
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<B>-a</B>,
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<B>-b</B>,
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<B>-o</B>,
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<B>-l</B>,
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and
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<B>-u</B>
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options.
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<A NAME="lbAK"> </A>
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<H2>AUTHOR</H2>
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Krishna Balasubramanian
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<A NAME="lbAL"> </A>
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<H2>AVAILABILITY</H2>
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The ipcs command is part of the util-linux package and is available from
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Linux Kernel Archive
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="15"><A HREF="#lbAB">NAME</A><DD>
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<DT id="16"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="17"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="18"><A HREF="#lbAE">OPTIONS</A><DD>
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<DL>
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<DT id="19"><A HREF="#lbAF">Resource options</A><DD>
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<DT id="20"><A HREF="#lbAG">Output formats</A><DD>
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<DT id="21"><A HREF="#lbAH">Representation</A><DD>
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</DL>
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<DT id="22"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="23"><A HREF="#lbAJ">CONFORMING TO</A><DD>
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<DT id="24"><A HREF="#lbAK">AUTHOR</A><DD>
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<DT id="25"><A HREF="#lbAL">AVAILABILITY</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:17 GMT, March 31, 2021
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</BODY>
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</HTML>
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