CPU usage shell script
This three-liner extracts the CPU idle-percentage from vmstat, subtracts it from 100 and stores the result in a file.
Vmstat arguments specify waiting time in seconds and number of captures. I chose {5,2} to be sufficient.
idle=`vmstat -n 5 2 | tail -n 1 | sed -e 's/ \{2,\}/ /g' | cut -d" " -f16`
use=$((100-$idle))
echo $use >> load
Vmstat arguments specify waiting time in seconds and number of captures. I chose {5,2} to be sufficient.
idle=`vmstat -n 5 2 | tail -n 1 | sed -e 's/ \{2,\}/ /g' | cut -d" " -f16`
use=$((100-$idle))
echo $use >> load
// posted by Jo-Chen @ Wednesday, August 24, 2005 
