#!/bin/bash
function main_menu
{
sudo clear
cursetting=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
getspd=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)
curspd=$(echo $getspd 1000000 | awk '{printf $1 / $2}')
echo ""
echo ""
echo "-----------------CPU Settings---------------------"
echo "1. Allow software to set CPU speed (UserSpace) setting."
echo "2. Set CPU to Minimum (Powersave) setting."
echo "3. Set CPU to Low (Conservative) setting."
echo "4. Set CPU to Medium (OnDemand) setting."
echo "5. Set CPU to High (Performance) setting."
echo "6. View CPUID info string."
echo "7. View Temperature sensor info string."
echo "8. Exit."
echo "--------------------------------------------------"
echo " Current CPU Setting - "$cursetting;
echo " Current CPU Speed - "$curspd"GHz";
choice=9
echo ""
echo -e "Please enter your choice: \c"
}

function press_enter
{
echo ""
echo -n "Press Enter to continue."
read
main_menu
} 

main_menu
while [ $choice -eq 9 ]; do
read choice

if [ $choice -eq 1 ]; then
echo userspace | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
main_menu
else
if [ $choice -eq 2 ]; then
echo powersave | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
main_menu
else
if [ $choice -eq 3 ]; then
echo conservative | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
main_menu
else
if [ $choice -eq 4 ]; then
echo ondemand | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
main_menu
else
if [ $choice -eq 5 ]; then
echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
main_menu
else
if [ $choice -eq 6 ]; then
echo ""
echo ""
echo ""
cpuid;
press_enter
else
if [ $choice -eq 7 ]; then
echo ""
echo ""
echo ""
sensors;
press_enter
else
if [ $choice -eq 8 ]; then
exit;
else
echo -e "Please enter the NUMBER of your choice: \c"
choice=9
fi
fi
fi
fi
fi
fi
fi
fi
done