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><H1
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><A
NAME="usage"
>Using Gshutdown</A
></H1
> 
    
   

   

         
      <DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="mainwin"
>Basic usage</A
></H2
>      
      <P
>	When you first start <SPAN
CLASS="APPLICATION"
>Gshutdown</SPAN
>, you see
	the <SPAN
CLASS="INTERFACE"
>Main window</SPAN
>, as shown in 
	.
	<DIV
CLASS="FIGURE"
><P
><B
><A
NAME="mainshot"
>Figure 1. Gshutdown Main Window</A
></B
></P
>	  
	  	    
	    <P
><IMG
SRC="gshutdown.gif"></P
>
	  
	</DIV
>
      </P
>

 <P
> This is the Gnome shutdown window.  If you want to turn your
      computer off, choose "Shut Down" rather than "Reboot," then
      press "OK." Wait a few moments for your computer to prepare
      itself, then turn it off. If you see the line "System Halted,"
      it's safe to power down the system.  If your computer has
      Advanced Power Management support, like many laptops and some
      desktops, you may not need the power button.</P
>

      <P
> To reboot, just choose "Reboot," press "OK," and wait.</P
>


   
    </DIV
>

      
    <DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="advanced"
>Advanced features</A
></H2
>      
    

	<DIV
CLASS="FIGURE"
><P
><B
><A
NAME="advance"
>Figure 2. Gshutdown Advanced Window</A
></B
></P
>	  
	  	    
	    <P
><IMG
SRC="gshutdown-advanced.gif"></P
>
	  
	</DIV
>

  <P
>Using the Advanced tab, you can change to any
      runlevel.</P
>

      <P
>A <I
CLASS="EMPHASIS"
>runlevel</I
> is a software
       configuration of the system which allows  only  a selected
       group of processes to exist.  The processes spawned by
       <SPAN
CLASS="APPLICATION"
>init</SPAN
> for each of these runlevels
       are defined  in  the <TT
CLASS="FILENAME"
>/etc/inittab
       file</TT
>. Init can be in one of eight runlevels: 0-6 and
       S or s.</P
>

      <P
>Runlevels 0, 1, and 6 are reserved. Runlevel 0 is used to
       halt the system, runlevel 6 is used to reboot the  system,
       and  runlevel 1 is used to get the system down into single
       user mode. Runlevel S is  not  really  meant  to  be  used
       directly,  but more for the scripts that are executed when
       entering runlevel 1.</P
>

      <P
>More information on runlevels is available in the
      <SPAN
CLASS="APPLICATION"
>init</SPAN
> manual page, which can be viewed
      using the command <B
CLASS="COMMAND"
>man init</B
> at the command
      line or by selecting <SPAN
CLASS="GUIMENUITEM"
>Help system</SPAN
> from
      the GNOME <SPAN
CLASS="GUIMENU"
>Main Menu</SPAN
> and selecting the option
      "Man Pages" from the Help Index. The
      <SPAN
CLASS="APPLICATION"
>init</SPAN
> man page is found under the
      <SPAN
CLASS="GUILABEL"
>Administration</SPAN
> category heading.</P
>

	</DIV
>

    <DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN61"
>Preferences</A
></H2
>      
  
	<DIV
CLASS="FIGURE"
><P
><B
><A
NAME="advancefigure"
>Figure 3. Gshutdown Preferences Window</A
></B
></P
>	  
	  	    
	    <P
><IMG
SRC="gshutdown-preferences.gif"></P
>
	  
	</DIV
>
 

      <P
> There is also a preferences dialog which allows you to
      configure the shutdown command line. For details of runlevels
      and the effect of various command line shutdown instructions,
      see your computer's documentation. If you are unfamiliar with
      the details of these issues, you
      should stick to the Easy tab. If you do know these things, the
      Advanced tab should be self-explanatory.</P
>

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