#!/usr/bin/env fish function main log 'Update apt sources list' echo ' deb http://ftp.us.debian.org/debian unstable main contrib non-free deb-src http://ftp.us.debian.org/debian unstable main contrib non-free' | sudo tee /etc/apt/sources.list log 'Upgrading debian to unstable' sudo apt-get --quiet --yes update sudo apt-get --quiet --yes dist-upgrade log 'Rebooting' sudo reboot end function log -a message echo \n"--- $message ---"\n end main