PHP Upgrade 8.0 auf 8.1

dpkg --get-selections | awk '/php8.0/{print $1}' > /tmp/php8.0.packages.txt
cp /tmp/php8.0.packages.txt /tmp/php8.1.packages.txt
sed -i -e 's/php8.0/php8.1/g' /tmp/php8.1.packages.txt
cat /tmp/php8.0.packages.txt | xargs sudo apt -y purge
cat /tmp/php8.1.packages.txt | xargs sudo apt -y install
sudo apt autoremove
sudo apt clean
sudo service php8.1-fpm restart
sudo service nginx restart