mega-upgrade.sh

#!/bin/bash

#
# Inspired by question/answers/comments at
# http://stackoverflow.com/questions/3316677/apt-get-update-dist-upgrade-autoremove-autoclean-in-a-single-sudo-command
#

if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

apt-get -y update
apt-get -y dist-upgrade
apt-get -y autoremove
apt-get -y autoclean

echo
echo Done.

if [ -f /var/run/reboot-required ]; then
  echo
  echo You should reboot...
fi