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📁 linux-unix130.linux.and.unix.ebooks130 linux and unix ebookslinuxLearning Linux - Collection of 12 E
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<TITLE>Linux in Plain English:Linux Commands Organized by Group</TITLE>

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

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

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

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

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<P><FONT SIZE="+1"><B>xload......<TT>Display System Load</TT></B></FONT></P>

<IMG SRC="images/05-59i.jpg"><P><B>xload</B> <I>option(s)</I></P>

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

<P>The <B>xload</B> command periodically polls for the system-load average and relays the information in a histogram.</P>

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

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="30%"><B>-hl <I>color</I></B>

<TD WIDTH="70%">Sets the color of the scale lines in the histogram.

<TR>

<TD VALIGN="TOP"><B>-jumpscroll <I>pixels</I></B>

<TD>Sets the number of <I>pixels</I> to offset when the graph reaches the right edge of the window. The default is half the width of the current window.

<TR>

<TD VALIGN="TOP"><B>-label <I>string</I></B>

<TD>Specifies the <I>string</I> to put as the label above the load average.

<TR>

<TD VALIGN="TOP"><B>-lights <I>n</I></B>

<TD>Displays the load average with keyboard LEDs. When the load level reaches <I>n</I>, <B>xload</B> lights the first <I>n</I> keyboard LEDs, but displays nothing on the screen.

<TR>

<TD><B>-nolabel</B>

<TD>Displays no label above the load graph.

<TR>

<TD VALIGN="TOP"><B>-scale <I>integer</I></B>

<TD>Sets the minimum number of tick marks in the display histogram.

<TR>

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

<TD>Returns new information every <I>seconds</I>. The default is 10, and the minimum is 1.

</TABLE>

<P><FONT SIZE="+1"><B>xlock......<TT>Lock Display</TT></B></FONT></P>

<IMG SRC="images/05-60i.jpg"><P><B>xlock</B> <I>option(s)</I></P>

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

<P>The <B>xlock</B> command locks an X display until a password is entered. When this happens, all new server connections are refused, the screen saver is disabled, the mouse cursor is turned off, and the screen is blanked.</P>

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

<TABLE WIDTH="100%">

<TR>

<TD WIDTH="38%"><B>-cycles <I>num</I></B>

<TD WIDTH="62%">Sets the number of cycles until a pattern times out.

<TR>

<TD><B>-display <I>dsp</I></B>

<TD>Sets the display to lock.

<TR>

<TD VALIGN="TOP"><B>-font <I>fontname</I></B>

<TD>Sets the <I>fontname</I> to be used on the login prompt screen.

<TR>

<TD><B>-forceLogout <I>minutes</I></B>

<TD>Sets <I>minutes</I> before auto-logout.

<TR>

<TD VALIGN="TOP"><B>-info <I>textstring</I></B>

<TD>Displays informational text on the login screen; the default is <I>Enter password to unlock; select icon to lock</I>.

<TR>

<TD VALIGN="TOP"><B>-invalid <I>textstring</I></B>

<TD>Sets <I>textstring</I> to display when a password is deemed invalid; the default is <I>Invalid login</I>.

<TR>

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

<TD>Sets the number of <I>seconds</I> before a screen needs a password to be unlocked.

<TR>

<TD VALIGN="TOP"><B>-logoutButtonHelp <I>textstring</I></B>

<TD>Sets <I>textstring</I> as the message shown outside the logout button it is displayed.

<TR>

<TD VALIGN="TOP"><B>-logoutButtonLabel <I>textstring</I></B>

<TD>Sets <I>textstring</I> as a messages shown inside the logout button when the logout button is displayed; the default is <I>Logout</I>.

<TR>

<TD VALIGN="TOP"><B>-logoutFailedString <I>textstring</I></B>

<TD>Sets the <I>textstring</I> to be displayed when a logout fails. The default is <I>Logout attempt FAILED.\n Current user could not be automatically logged out</I>.

<TR>

<TD><B>-message <I>textstring</I></B>

<TD>Specifies a message, not a fortune.

<TR>

<TD VALIGN="TOP"><B>-messagefile <I>filename</I></B>

<TD>Specifies a file where the contents are the message.

<TR>

<TD VALIGN="TOP"><B>-messagesfile <I>formatted-filename</I></B>

<TD>Specifies a file containing a fortune message. The first entry is the number of fortunes, the next line contains the first fortune.

<TR>

<TD VALIGN="TOP"><B>-mfont <I>mode-fontname</I></B>

<TD>Specifies the font to be used with the marquee and nose modes.

<TR>

<TD><B>-mode <I>modename</I></B>

<TD>Sets a display mode.

<TR>

<TD><B>-mono</B>

<TD>Displays in monochrome.

<TR>

<TD VALIGN="TOP"><B>-name <I>resource</I></B>

<TD>Uses <I>resource</I> instead of the Xlock resource when configuring <B>xlock</B>. There are 45 of them; check out the online manual pages for a complete list. (Hint: we like the <B>nose</B> mode.)

<TR>

<TD><B>-nice <I>nicelevel</I></B>

<TD>Sets the nice level.

<TR>

<TD VALIGN="TOP"><B>-password <I>textstring</I></B>

<TD>Shows <I>textstring</I> in front of the password prompt; the default is <I>Password:</I>.

<TR>

<TD VALIGN="TOP"><B>-program <I>programname</I></B>

<TD>Specifies a program to be used to generate a fortune message.

<TR>

<TD><B>-resources</B>

<TD>Displays the default resource file.

<TR>

<TD><B>-saturation <I>value</I></B>

<TD>Sets the saturation of the color ramp.

<TR>

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

<TD>Sets the number of <I>seconds</I> before the password screen times out.

<TR>

<TD VALIGN="TOP"><B>-username <I>textstring</I></B>

<TD>Shows <I>textstring</I> in front of the username prompt; the default is <I>Name:</I>.

<TR>

<TD VALIGN="TOP"><B>-validate <I>textstring</I></B>

<TD>Sets <I>textstring</I> to display when validating a password; the default is <I>Validating login</I>.

<TR>

<TD><B>-/&#43;allowroot</B>

<TD>Allows the root user to login the system.

<TR>

<TD VALIGN="TOP"><B>-/&#43;echokeys</B>

<TD>Displays ? for each key entered. The default is to display nothing.

<TR>

<TD><B>-/&#43;enablesaver</B>

<TD>Keeps the screen saver running.

<TR>

<TD><B>-/&#43;grabmouse</B>

<TD>Grabs the mouse and keyboard (the default).

<TR>

<TD VALIGN="TOP"><B>-/&#43;inroot</B>

<TD>Runs <B>xlock</B> in a root window. This doesn&#146;t actually lock the system.

<TR>

<TD VALIGN="TOP"><B>-/&#43;install</B>

<TD>Allows <B>xlock</B> to use it own colormap. This will not work with the <B>fvwm</B> window manager.

<TR>

<TD><B>-/&#43;inwindow</B>

<TD>Runs <B>xlock</B> in a window.

<TR>

<TD><B>&#43;/-nolock</B>

<TD>Works as a screen saver.

<TR>

<TD VALIGN="TOP"><B>-/&#43;remote</B>

<TD>Allows you to lock remote X terminals. You should not be locking someone else&#146;s X terminal.

<TR>

<TD><B>-/&#43;timeelapsed</B>

<TD>Tells you how long a machine has been locked.

<TR>

<TD VALIGN="TOP"><B>-/&#43;usefirst</B>

<TD>Uses the first key pressed as the first key of the password. The default is to ignore the first key, since it&#146;s used to get the attention of the system.

</TABLE>

<P><FONT SIZE="+1"><B>xlogo......<TT>Display X Logo</TT></B></FONT></P>

<IMG SRC="images/05-61i.jpg"><P><B>xlogo</B> <I>option</I></P>

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

<P>The <B>xlogo</B> command displays the X logo. This is useful at trade shows, when gawkers want to know what operating system is running.</P>

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

<TABLE WIDTH="100%">

<TR>

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

<TD WIDTH="75%">Displays the logo window as a shape instead of a rectangle.

</TABLE>

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