# Commands that worked 20200323 to install docker on ubuntu 18.04
# First installed docker on your system with

sudo apt-get update
sudo apt-get remove docker docker-engine docker.io
sudo apt install docker.io
sudo systemctl start docker
sudo systemctl enable docker

sudo groupadd docker
sudo usermod -aG docker $USER
# this command makes the new group information available
newgrp docker

# test to see if can run without root
docker run hello-world