reinstall docker on any machine

reinstall_docker.sh

#!/usr/sh
sudo service docker stop && sudo apt-get purge -y docker-engine && sudo apt-get autoremove --purge -y docker-engine && sudo rm -rf /var/lib/docker && sudo apt-get update && sudo apt-get install -y docker-engine && sudo service docker start && sudo docker run hello-world && sudo usermod -aG docker $USER

You could change from "any machine" to "linux like's debian" because doesn't works with Red Hat's like and doesn't work Windows