create_user(){
    useradd -m afonso
    echo 'Insert password for user afonso'
    passwd afonso
}

enable_wheel_group(){
    sed -i 's/^# %wheel ALL=(ALL:ALL) ALL/%wheel ALL=(ALL:ALL) ALL/' /etc/sudoers
}

add_user_to_wheel() {
    usermod -aG wheel afonso
}

init(){
    create_user
    enable_wheel_group
    add_user_to_wheel
}

init