old-www/HOWTO/Ecology-HOWTO/ecology-howto-monitor.html

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>1.3. Turn Monitor off, use Keyboard LEDs</H1
><P
>&#13;There are some tools which allow to get information from your computer without using the monitor:
<P
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><UL
><LI
><P
>&#13;<B
CLASS="command"
>bl</B
> : Blink Keyboard LEDs
</P
></LI
><LI
><P
>&#13;
<B
CLASS="command"
>blinkd</B
> : "Blinks keyboard LEDs for an answering
machine or fax machine. Blinkd is a client/server pair, that lets the
keyboard LEDs blink, indicating things like the number of incoming voice
calls in the voice box or incoming faxes in the spool."
</P
></LI
><LI
><P
>&#13;
<B
CLASS="command"
>mailleds</B
> : Shows new mails with the keyboard LEDs,
<B
CLASS="command"
>mailleds</B
> is a quiet, unobtrusive way to signify that
you have new mail: a user daemon to blink LEDs when there is new mail.
</P
></LI
><LI
><P
>&#13;
<B
CLASS="command"
>tleds</B
> : Blinks keyboard LEDs indicating TX and RX network
packets. They blink Scroll-Lock LED when a network packet leaves the
machine, and Num-Lock LED when one is received.
</P
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><P
>&#13;<A
HREF="http://www.iki.fi/sampo.niskanen/ledcontrol/"
TARGET="_top"
>ledcontrol</A
>:
is a program that allows you to show different information on the
normally-unused LEDs on your keyboard. You can configure it to show virtually
any true/false condition accessible or indicate an arbitrary number. The
monitoring is by default done by shell scripts to allow for maximal
configurability.
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