Simple way to set the power profile

tuned-adm.sh

# /bin/bash

profiles=($(tuned-adm list | awk 'NR > 1 {print $2}'))

echo -e "\n"

for ((i=0; i < ${#profiles}; i++))
do
  echo $i -- ${profiles[$i]}
done

echo -e "\nEnter the number of the profile you want to use from the list above:"

read index

echo "Setting profile to ${profiles[$index]}..."
tuned-adm profile ${profiles[$index]}

tuned-adm active