Chain apt-get update > upgrade > dist-upgrade > autoremove

update.sh

#!/bin/bash

echo "apt-get update & upgrade wizard"
echo "Would you like to assume yes? [y/n]"
read input_force

if [ $input_force = y ]
then
  force="--yes"
fi

apt-get update

apt-get upgrade $force

echo "Run dist-upgrade? [y/n]"
read dist_upgrade

if [ $dist_upgrade = n ]
then
  echo "Aborted"
  exit
fi

apt-get dist-upgrade $force

echo "Run autoremove? [y/n]"
read autoremove

if [ $autoremove = n ]
then
  echo "Aborted"
  exit
fi

apt-get autoremove $force

if [ ! -f /var/run/reboot-required ]
then
  echo "No reboot required"
  exit
fi

echo "A reboot is required"
echo "Would you like to reboot now? [y/n]"
read reboot_now

if [ $reboot_now = y ]
then
  echo "Rebooting"
  reboot
fi