A simple bash script to get/set thermal cooling policy for each cpu

cooling_policy

#!/bin/sh

# For all cpus, just report current states if no argument is passed
NCPU=$((`grep -c '^processor' /proc/cpuinfo`))

if [ $# -lt 1 ];
then
    MAX=$((`cat /sys/devices/virtual/thermal/cooling_device0/max_state`))
    echo "Current cooling policy for $NCPU cpus: [0-$MAX]"
    for (( i=0; i<$NCPU; i++ ))
    do
        cat /sys/devices/virtual/thermal/cooling_device$i/cur_state
    done
    exit
fi

# A first argument will update current states
echo "Setting cooling policy to $1 for $NCPU cpus"
for (( i=0; i<$NCPU; i++ ))
do
    echo "Setting cpu $i"
    echo "$1" > /sys/devices/virtual/thermal/cooling_device$i/cur_state
done

exit