[mrtg] Re: Incorrect SWAP and RAM values?

[Dener Fernandes]

Hi,

I'm using these modest shell scripts that use TOP:
------------------------------
1)

#!/bin/sh
# cpu.sh

cpubusy=0
cpulivre=`/usr/local/bin/top -d2 | head -26 | tail -1 | awk -F" " 
'{print $3}' |
 sed -e 's/%//'`

echo $cpulivre | cut -d . -f1

cpubusy=`echo "100 - $cpulivre" | bc`

echo $cpubusy | cut -d . -f1

uptime | awk '{print $3, $4, $5}'
#uptime | sed 's:^.* up \(.*\), [0-9][0-9]* users.*$:\1:'
uname -n

exit 0
--------------------------------
2)

#!/bin/sh
# mem.sh

memlivre=0
swaplivre=0
#
linha=`/usr/local/bin/top -d1 | head -4 | tail -1`
memlivre=`echo $linha | awk -F" " '{print $4}' | sed -e 's/M//'`
swaplivre=`echo $linha | awk -F" " '{print $10}' | sed -e 's/G//'`
#
memlivre=`echo "1024 * $memlivre" | bc`
swaplivre=`echo "1048576 * $swaplivre" | bc`
#
echo $memlivre
echo $swaplivre | cut -d . -f1
#
# grava informagco complementar para o MRTG:
uptime | awk -F" " '{print $3, $4, $5}'
uname -n
#
exit 0

--------------------------------
Watch out for the output units of top ( Megabytes or Gigabytes). Then 
you have to adjust the filter line above!

And the Target line inside MRTG's cfg file is:

Target[10.xxx.xxx.xxx.cpu]: `rsh -l mrtg hostname /usr/local/sbin/cpu.sh`

They work just fine in solaris 8 and Linux Mandrake 9.1.

Hope this can help!
Dêner Fernandes

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