update-system.sh

#!/usr/bin/env bash

echo '-----> update <-----'
apt update

echo '-----> upgrade <-----'
apt --yes upgrade

echo '-----> dist-upgrade <-----'
apt --yes dist-upgrade

echo '-----> autoremove <-----'
apt --yes autoremove

echo '-----> autoclean <-----'
apt autoclean

# dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt -y purge

# http://chr4.org/blog/2013/08/04/apt-cleanup-commands/
echo '-----> purge <-----'
apt --yes purge $(dpkg --list |egrep 'linux-image-[0-9]' |awk '{print $3,$2}' |sort -nr |tail -n +2 |grep -v $(uname -r) |awk '{ print $2}')