===Install gpiod package===
sudo apt install -y gpiodbc '''PS''': The reason for installing the <code>bc</code> command is because we use the <code>bc</code> command in the fan script file to obtain the CPU temperature
==Download the script==
1. Prepaid the xSoft.sh command
sudo cp -f ./xSoft.sh /usr/local/bin/
2. Then run the following command to create a alias '''xoff''' command
echo "alias xoff='sudo /usr/local/bin/xSoft.sh 0 27'" >> ~/.bashrc
3. Run the following command to make the alias '''xoff''' effective