Update GitHub backup with script

Hello everyone!

I’m trying to understand how i can update the GitHub backup with the script like it’s write in the documentation

#!/bin/bash

cd /home/homeassistant/.homeassistant
source /srv/homeassistant/bin/activate
hass --script check_config

git add .
git status
echo -n "Enter the Description for the Change: " [Minor Update]
read CHANGE_MSG
git commit -m "${CHANGE_MSG}"
git push origin master

exit

It’s says i have to create a script called : gitupdate.sh but i don’t where i have to put the file and how i can trigger it ?

maybe someone can help me to understand this ?

Thanks in advance for your time :grin: