Several Ubuntu systems were harmed in the making of this video. Part 1 was a disappointment due to number of safeguards, but this time there are no safeguards and Systems used: Ubuntu 15.10 server, Ubuntu 16.04 desktop Beta 1, and Fedora 23. Part 1: https://www.youtube.com/watch?v=kJTWru5nwuk 0:28 Delete all files sudo rm -rf /* 1:04 Messing with permissions sudo chmod 000 / -R 2:02 Messing with permissions sudo chmod 2775 / -R 2:36 Blanking out sudoers echo -en | sudo tee /etc/sudoers 3:03 Exhausting memory 3:45 Overwriting memory dd if=/dev/urandom of=/dev/mem 4:59 Overwriting harddrive dd if=/dev/zero of=/dev/sda 5:40 Formatting a mounted drive mkfs.ext4 -F -F /dev/sda1 Google+ https://google.com/+quidsup Twitter: https://twitter.com/quidsup Wallpaper: http://quidsup.net/?i=Terminal