[mrtg] newbie question: how to convert string -> value?

[Evert]

Niall O'Reilly wrote:
> 
> On Fri, 2009-02-27 at 03:26 -0800, Evert wrote:
>> How do I configure this in mrtg.conf so that I get something I can
>> graph?
> 
> 	Look in the MRTG reference (master copy is 
> 	http://oss.oetiker.ch/mrtg/doc/mrtg-reference.en.html, other
> 	copies are everywhere MRTG is installed) for 'External 
> 	monitoring scripts'.
> 
> 	You'll need to post-process the output from your SNMP
> 	collector, perhaps like this:
> 
> echo '    STRING: 0.35' \
> | perl -ne 's/.*:\s+//; printf "%d\n0\n0\n0\n\n", 100*$_; exit'
> 
> 	I've assumed it makes sense to convert the load average
> 	to a percentage.  This may (or not) fit your needs.
> 

Your assumption is wrong, but that is my fault! :-{
(the value is a load average)

I was hoping to do it all from within mrtg.conf, but I guess that's not
possible...?

Thanks for the pointer!  :handshake:

-----
Greetings,
   Evert
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