CPUFreqFace - Little interface for CPU clock control

#!/bin/bash
# CPUFreq YAD Interface
# Made by Artur 'hoOmE' Paiva <[email protected]>
# Under LGPLv3
# Verifica se o YAD Existe mesmo.
here=$(dirname $0)
if [ "$(yad --version 2>/dev/null)" = "$null" ]; then
    echo "YAD isnt installed, but GameVision needs YAD"
    exit 1
fi

# Subrotina para trocar o governator de todos os nucleos
changeto() {
    sudo cpupower frequency-set -g $1
}

# A Tela principal
while [ "$resposta" != "252" ]; do
yad --button="OnDemand":0 --button="Performance":1 --button="PowerSave":3 --button="gtk-close":252 --center --image="cpu" --title="Accelerometer" --text="Current Speed: $($here/getclock.sh) - Current Governator: $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)" --sticky --undecorated --on-top --skip-taskbar --geometry=0x0+0+0
    resposta=$?
    if [ "$resposta" = "0" ]; then
        changeto ondemand
    elif [ "$resposta" = "1" ]; then
        changeto performance
    elif [ "$resposta" = "2" ]; then
        changeto conservative
    elif [ "$resposta" = "3" ]; then
        changeto powersave
    fi
done