a bash script to check cpu usage?

[divisionmd]

Hello,

Working on a few test programs here... html5 apps that are a bit buggy.. .anyone know how to:

Make a bash script to detect when cpu usage is 80% or more- then run a killall chrome command.?

thanks for help,
Johan

[Karl Godt]

while i_know_what_i_am_doing; do

Code: Select all

IDLE=`top -n1| grep -o -e '[0-9]*\% idle' |sed 's%[^[:digit:]]%%g'`
echo $IDLE
#45

sleep 1
done

[divisionmd]

hello Karl Godt,

thanks for input - Got an error on char 19... but might be a typo doublechecking tomorrow first thing after coffeee...


best regards,
Johan

[Karl Godt]

code should work, but that above was on Racy-5.5,
which has Busybox-1.19.x or above
and my current 1.18.3 seems to need the -b option passed to top additionally
and does not show correct values: 95% of the time it is 100% idle or 0% though top without options in another console shows 80% idle.

check busybox version by issuing busybox in the console.

[divisionmd]

Hello Karl,

- Worked perfectly - just made a typo...

Thanks for help,

Best regards,
Johan