sudo touch /opt/ups/INA219.py
sudo touch /opt/ups/ups.sh
chmod +x /opt/ups/ups.sh

echo "#!/bin/bash" >  /opt/script/gpio.sh
echo "echo \"21\" > /sys/class/gpio/export">>  /opt/script/gpio.sh
echo "echo \"out\" > /sys/class/gpio/gpio21/direction">>  /opt/script/gpio.sh
echo "echo \"0\" > /sys/class/gpio/gpio21/value">>  /opt/script/gpio.sh

echo "#!/bin/bash" >  /opt/script/gpio.sh
echo "echo \"1\" > /sys/class/gpio/gpio21/value">>  /opt/script/gpio.sh


echo "[Unit]"> /etc/systemd/system/gpio.service
echo "Description=Run Scripts at Start and Stop">> /etc/systemd/system/gpio.service
echo "[Service]">> /etc/systemd/system/gpio.service
echo "Type=oneshot">> /etc/systemd/system/gpio.service
echo "RemainAfterExit=true">> /etc/systemd/system/gpio.service
echo "ExecStart=/opt/script/gpio.sh">> /etc/systemd/system/gpio.service
echo "ExecStop=/opt/script/shutdown.sh">> /etc/systemd/system/gpio.service
echo "[Install]">> /etc/systemd/system/gpio.service
echo "WantedBy=multi-user.target">> /etc/systemd/system/gpio.service

systemctl enable gpio