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<!--ISBN=1558285423//-->

<!--TITLE=Linux in Plain English//-->

<!--AUTHOR=Patrick Volkerding//-->

<!--AUTHOR=Kevin Reichard//-->

<!--PUBLISHER=IDG Books Worldwide, Inc.//-->

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<P><FONT SIZE="+1"><B>xcmsdb......<TT>Device Color Management</TT></B></FONT></P>

<IMG SRC="images/05-41i.jpg"><P><B>xcmsdb</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The <B>xcmsdb</B> command loads, queries, or removes Device Color Characterization data stored in properties on the root window of the screen as specified in Section 7 of the ICCCM. This information is necessary for proper conversion of color specification between device-independent and device-dependent forms.</P>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="25%" VALIGN="TOP"><B>-query</B>

<TD WIDTH="75%">Reads the XDCCC properties from the screen&#146;s root window.

<TR>

<TD VALIGN="TOP"><B>-remove</B>

<TD>Removes the XDCCC properties from the screen&#146;s root window.

<TR>

<TD VALIGN="TOP"><B>-format <I>32|16|8</I></B>

<TD>Specifies the property format in bits per entry: 32, 16, or 8.

</TABLE>

<P><FONT SIZE="+1"><B><I>RELATED COMMAND</I></B></FONT></P>

<DL>

<DD><B>xprop</B>

</DL>

<P><FONT SIZE="+1"><B>xconsole......<TT>X Console Monitor</TT></B></FONT></P>

<IMG SRC="images/05-42i.jpg"><P><B>xconsole</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The <B>xconsole</B> command displays messages that are usually sent to <B>/dev/console</B>.</P>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="25%"><B>-daemon</B>

<TD WIDTH="75%">Runs the command in the background.

<TR>

<TD><B>-file <I>filename</I></B>

<TD>Specifies another device to monitor.

<TR>

<TD VALIGN="TOP"><B>-notify</B>

<TD>Displays applications that send new data to the console, even if the application is iconified. This is the default.

<TR>

<TD><B>-nonotify</B>

<TD>Toggles the <B>-notify</B> option.

<TR>

<TD><B>-verbose</B>

<TD>Adds an informative first line to the text buffer.

<TR>

<TD VALIGN="TOP"><B>-exitOnFail</B>

<TD>Exits when it is unable to redirect the console output.

</TABLE>

<P><FONT SIZE="+1"><B>xcpustate......<TT>X CPU States</TT></B></FONT></P>

<IMG SRC="images/05-43i.jpg"><P><B>xcpustate</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The <B>xcpustate</B> displays various CPU states.</P>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="30%" VALIGN="TOP"><B>-count <I>iterations</I></B>

<TD WIDTH="70%">Specifies a limit for the number of times the display should be updated. There is no default limit.

<TR>

<TD VALIGN="TOP"><B>-interval <I>seconds</I></B>

<TD>Sets the interval between updates; the default is one second.

</TABLE>

<P><FONT SIZE="+1"><B><I>RELATED COMMANDS</I></B></FONT></P>

<DL>

<DD><B>xload</B>

<DD><B>xperfmon</B>

</DL>

<P><FONT SIZE="+1"><B>xcutsel......<TT>X Cut Selection</TT></B></FONT></P>

<IMG SRC="images/05-44i.jpg"><P><B>xcutsel</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The <B>xcutsel</B> command copies the current selection into a cut buffer and makes a selection that contains the current contents of a cut buffer. The command is used as a bridge between applications that don&#146;t support selections and those that do, although most newer applications do support selections.</P>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="30%" VALIGN="TOP"><B>-selection <I>name</I></B>

<TD WIDTH="70%">Sets the name of the function to use; the default is primary. The only supported abbreviations are <I>-select</I>, <I>-sel</I>, and <I>-s</I>.

<TR>

<TD VALIGN="TOP"><B>-cutbuffer <I>number</I></B>

<TD>Sets the number of the cut buffer to use; the default is <I>0</I>.

</TABLE>

<P><FONT SIZE="+1"><B><I>RELATED COMMANDS</I></B></FONT></P>

<DL>

<DD><B>xclipboard

<DD>xterm</B>

</DL>

<P><FONT SIZE="+1"><B>xdm......<TT>X Display Manager</TT></B></FONT></P>

<IMG SRC="images/05-45i.jpg"><P><B>xdm</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The X Display Manager oversees X displays, whether they are on the local host or remote servers. It oversees the session, prompting for a login name and password, authenticating the user, and running the actual session (which begins and ends with the session manager). When a session is ended, <B>xdm</B> resets the X server and restarts the whole process. It can also coordinate between sessions via XDMCP, offering host menus to other terminals.</P>

<BLOCKQUOTE>

<P><FONT SIZE="-1"><HR><B>NOTE:&nbsp;&nbsp;</B>The <B>xdm</B> is a complex command that can&#146;t be covered in any depth here. Check out the online-manual page or a good X Window System reference before tackling this command.<HR></FONT>

</BLOCKQUOTE>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="45%" VALIGN="TOP"><B>-config <I>configuration_file</I></B>

<TD WIDTH="55%">Specifies the configuration file; the default is <B>&lt;XRoot&gt;/lib/X11/xdm/xdm-config</B>.

<TR>

<TD VALIGN="TOP"><B>-debug <I>debug_level</I></B>

<TD>Sets the debugging level value, needed by the <I>DisplayManager.debugLevel</I> resource. However, this debugging information is worthless unless you want to work with the <B>xdm</B> source code.

<TR>

<TD VALIGN="TOP"><B>-error <I>error_logfile</I></B>

<TD>Sets the value for the <I>DisplayManager.errorLogFile</I> resource.

<TR>

<TD VALIGN="TOP"><B>-nodaemon</B>

<TD>Uses <I>false</I> as the value for the <I>DisplayManager.daemonMode</I> resource.

<TR>

<TD VALIGN="TOP"><B>-resources <I>resource_file</I></B>

<TD>Sets the value for the <I>DisplayManger*resources</I> resource. It contains configuration parameters for the authentication widget.

<TR>

<TD VALIGN="TOP"><B>-server <I>server_entry</I></B>

<TD>Sets the value for the <I>DisplayManager.servers</I> resource.

<TR>

<TD VALIGN="TOP"><B>-session <I>session_program</I></B>

<TD>Sets the value for the <I>DisplayManager*session</I> resource. This sets the program to run as the session after the user has logged in.

<TR>

<TD VALIGN="TOP"><B>-udpPort <I>port_number</I></B>

<TD>Sets the value for the <I>DisplayManager.requestPort</I> resource, which controls the port number for XDMCP requests. Because XDMCP uses the registered UDP port 177, this is a setting you shouldn&#146;t change.

<TR>

<TD><B>-xrm <I>resource_specification</I></B>

<TD>Sets an arbitrary resource.

</TABLE>

<P><FONT SIZE="+1"><B><I>RELATED COMMANDS</I></B></FONT></P>

<DL>

<DD><B>xauth

<DD>xinit</B>

</DL>

<P><FONT SIZE="+1"><B>xdpyinfo......<TT>X Display Info</TT></B></FONT></P>

<IMG SRC="images/05-46i.jpg"><P><B>xdpyinfo</B> <I>option(s)</I></P>

<P><FONT SIZE="+1"><B><I>PURPOSE</I></B></FONT></P>

<P>The <B>xdpyinfo</B> command displays information regarding a specific X server. It&#146;s most useful when looking for graphics information.</P>

<P><FONT SIZE="+1"><B><I>OPTIONS</I></B></FONT></P>

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="30%" VALIGN="TOP"><B>-ext <I>extension</I></B>

<TD WIDTH="70%">Displays information about a specific <I>extension</I>. If no <I>extension</I> is named, then information about all the extensions is named.

<TR>

<TD VALIGN="TOP"><B>-queryExtensions</B>

<TD>Also displays numeric information (opcode, base event, base error) about protocol extensions.

</TABLE>

<P><FONT SIZE="+1"><B><I>RELATED COMMANDS</I></B></FONT></P>

<DL>

<DD><B>xprop

<DD>xrdb

<DD>xwininfo</B>

</DL>

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