Update Debian/Ubuntu unattended

update.sh

#!/bin/bash
if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root"
   exit 1
fi
sudo timedatectl set-ntp true
wget -O update.sh https://update.mvtk.nl && chmod +x update.sh

DOW=$(date +%u)
DOM=$(date +%-d)
apt-get --fix-missing update
apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade
apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" dist-upgrade
if command -v snap >/dev/null 2>&1; then
	sudo snap refresh
fi
if [[ $DOW -eq 7 ]]; then
	if [[ $DOM -le 7 ]]; then
		if command -v pihole >/dev/null 2>&1; then
			pihole updatePihole
		fi
	fi
fi
apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" autoremove
if [[ $DOW -eq 7 ]]; then
	if [[ $DOM -le 7 ]]; then
		reboot
	fi
fi

if [ -t 1 ] ; then
	echo "Interactive mode";
	if [ $# -eq 0 ]; then
		reboot
	else
		if [ "$1" == "reboot" ]; then
			reboot
		elif [ "$1" == "shutdown" ]; then
			if [ -f /usr/local/bin/xSoft.sh ]; then
				sudo /usr/local/bin/xSoft.sh 0 20
			else
				shutdown -h now
			fi
		fi
	fi
fi

1. Default interactive action

curl -sSL https://update.mvtk.nl | sudo -E bash -

2. Shutdown

curl -sSL https://update.mvtk.nl | sudo -E bash -s -- shutdown

3. Reboot

curl -sSL https://update.mvtk.nl | sudo -E bash -s -- reboot

4. No interactive action

curl -sSL https://update.mvtk.nl | sudo -E bash -s -- ha