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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML
><HEAD
><TITLE
>System and configuration programs</TITLE
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>Introduction to GNOME</TH
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><A
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>Prev</A
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><TD
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>Chapter 2. A tour of some GNOME applications</TD
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><HR
ALIGN="LEFT"
WIDTH="515"><H1
><A
NAME="I(GNOME-INTRO)C(2,CHAPTER)(6,SECT1)"
>System and configuration programs</A
></H1
><H2
><A
NAME="I(GNOME-INTRO)C(2,CHAPTER)(6,SECT1)(1,SECT2)"
>gtop</A
></H2
><P
> The gtop application is a
graphical version of the UNIX <B
CLASS="COMMAND"
>top</B
>
command, but it also presents a very useful memory view
which can help you resolve performance problems. You can
invoke gtop from the panel or by typing
<P
CLASS="LITERALLAYOUT"
><TT
CLASS="PROMPT"
>$ </TT
><TT
CLASS="USERINPUT"
><B
>gtcd &</B
></TT
></P
>
</P
><P
> In <A
HREF="c0206.html#GTOP-PROCS"
>Figure 2-18</A
> you see the initial view you
get from <B
CLASS="COMMAND"
>gtop</B
>. If you select a process
with the left mouse button you
can bring up a menu of options for killing the process or
seeing more detail about it, as shown in <A
HREF="c0206.html#GTOP-KILL"
>Figure 2-19</A
>.
</P
><DIV
CLASS="FIGURE"
><P
><B
><A
NAME="GTOP-PROCS"
>Figure 2-18. gtop: processes view</A
></B
></P
><P
><IMG
SRC="pix/gtop-procs.gif"></P
></DIV
><DIV
CLASS="FIGURE"
><P
><B
><A
NAME="GTOP-KILL"
>Figure 2-19. gtop: killing a process</A
></B
></P
><P
><IMG
SRC="pix/gtop-kill.gif"></P
></DIV
><P
> In <A
HREF="c0206.html#GTOP-MEM"
>Figure 2-20</A
> you can see one of the memory
views in gtop: this tells you
what the <I
CLASS="EMPHASIS"
>resident</I
> size of each process
is. Other views (which can be selected with the
Memory menu) show you the processes'
total memory and shared library memory.
</P
><DIV
CLASS="FIGURE"
><P
><B
><A
NAME="GTOP-MEM"
>Figure 2-20. gtop: memory view</A
></B
></P
><P
><IMG
SRC="pix/gtop-mem.gif"></P
></DIV
><H2
><A
NAME="I(GNOME-INTRO)C(2,CHAPTER)(6,SECT1)(2,SECT2)"
>Property settings</A
></H2
><P
> There are three basic property setting commands that affect
your graphical environment:
<B
CLASS="COMMAND"
>background-properties</B
>,
<B
CLASS="COMMAND"
>keyboard-properties</B
> and
<B
CLASS="COMMAND"
>mouse-properties</B
>. These commands are
usually meant to be invoked from the panel, but they can
also be invoked by typing
<P
CLASS="LITERALLAYOUT"
><TT
CLASS="PROMPT"
>$ </TT
><TT
CLASS="USERINPUT"
><B
>background-properties &</B
></TT
></P
>
<P
CLASS="LITERALLAYOUT"
><TT
CLASS="PROMPT"
>$ </TT
><TT
CLASS="USERINPUT"
><B
>keyboard-properties &</B
></TT
></P
>
<P
CLASS="LITERALLAYOUT"
><TT
CLASS="PROMPT"
>$ </TT
><TT
CLASS="USERINPUT"
><B
>mouse-properties &</B
></TT
></P
>
</P
><P
> The <B
CLASS="COMMAND"
>background-properties</B
> command, among
other things, a way of visually selecting a screen saver and
running a preview in a small window. This is shown in
<A
HREF="c0206.html#BACKGROUND-PROPERTIES"
>Figure 2-21</A
>.
</P
><DIV
CLASS="FIGURE"
><P
><B
><A
NAME="BACKGROUND-PROPERTIES"
>Figure 2-21. background-properties</A
></B
></P
><P
><IMG
SRC="pix/background-properties.gif"></P
></DIV
><P
> I will not present more detail about these applications
here, since they are quite self-explanatory and easily
explored.
</P
><H2
><A
NAME="I(GNOME-INTRO)C(2,CHAPTER)(6,SECT1)(3,SECT2)"
>Line printer configuration (gulp)</A
></H2
><P
> GNOME has an interface for configuring printers, called
<B
CLASS="COMMAND"
>gulp</B
> (which could stand for GNOME Unified
Link to Printers). You can invoke <B
CLASS="COMMAND"
>gulp</B
>
from the panel or by typing
<P
CLASS="LITERALLAYOUT"
><TT
CLASS="PROMPT"
>$ </TT
><TT
CLASS="USERINPUT"
><B
>gulp &</B
></TT
></P
>
</P
><P
> I present a snapshot in <A
HREF="c0206.html#GULP"
>Figure 2-22</A
>, but
unfortunately I do not have any printers set up for the
laptop with which I am traveling, so this will not give you
a very good idea of how <B
CLASS="COMMAND"
>gulp</B
> works!
</P
><DIV
CLASS="FIGURE"
><P
><B
><A
NAME="GULP"
>Figure 2-22. gulp</A
></B
></P
><P
><IMG
SRC="pix/gulp.gif"></P
></DIV
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