#sudo sed '/@/home/iar/TTD/TTDcheck.sh/d' /etc/xdg/lxsession/LXDE-pi/autostart

#sudo grep -vwE "@/home/iar/TTD/TTDcheck.sh" /etc/xdg/lxsession/LXDE-pi/autostart > /home/iar/tmp
#sudo mv /home/iar/tmp /etc/xdg/lxsession/LXDE-pi/autostart

systemctl --user disable ttd.service
systemctl --user stop ttd.service