#!/bin/bash
read -p "Disable guest account? yes or no: " ans
case "$ans" in
        yes) if locate /etc/lightdm/ |grep lightdm.conf
then
                sed -i '$ a [SeatDefaults]' /etc/lightdm/lightdm.conf &&
                sed -i '$ a user-session=ubuntu' /etc/lightdm/lightdm.conf &&
                sed -i '$ a greeter-session=unity-greeter' &&
                sed -i '$ a allow-guest=false' /etc/lightdm/lightdm.conf &&
                echo "Guest account disabled succesfuly"

else cat > /etc/lightdm/lightdm.conf
                sed -i '$ a [SeatDefaults]' /etc/lightdm/lightdm.conf &&
                sed -i '$ a user-session=ubuntu' /etc/lightdm/lightdm.conf &&
                sed -i '$ a greeter-session=unity-greeter' &&
                sed -i '$ a allow-guest=false' /etc/lightdm/lightdm.conf && echo "Guest account disabled"

fi
        ;;
        no) echo "Will not disable guest account "
esac