cd /etc/cron.daily
cd /etc/cron.weekly
cd /etc/cron.monthly

sudo curl -O https://raw.githubusercontent.com/marianwolf/sh/main/apt-update.sh

sudo mv apt-update.sh /etc/cron.{daily,weekly,monthly}/apt-update

sudo chmod +x /etc/cron.{daily,weekly,monthly}/apt-update


Oneliner:
curl -s https://raw.githubusercontent.com/marianwolf/sh/main/apt-update.sh | sudo bash