yum install docker-io
service docker start
chkconfig docker on
docker pull centos:latest
docker images centos
			

test

docker run -i -t centos /bin/bash
			

$ sudo apt-get update
$ sudo apt-get install docker.io
$ sudo ln -sf /usr/bin/docker.io /usr/local/bin/docker
$ sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/docker.io
			

$ sudo docker run -i -t ubuntu /bin/bash