Togglegov

togglegov.sh

#!/bin/bash

if [[ -n $1 ]]; then
    [ "root" != "$USER" ] && exec sudo $0 "$@"

    read current < /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
    read -ra available < /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors

    next="x"
    for i in `seq 0 ${#available[@]}`; do
        if [[ ${available[$i]} == $current ]]; then
            next=$(( (i + 1) % ${#available[@]}))
        fi
    done

    [ "$next" == "x" ] && exit 1

    for cpu in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
        echo ${available[$next]} > $cpu
    done
fi

read current < /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

case $current in
"powersave")
    echo -n ' '
    ;;
"performance")
    echo -n ' '
    ;;
esac

echo ${current^}