docker build -t <image_name> . // the . is important because it takes the Dockerfile from this dir
docker ps // show all running containers
docker ps -a //show all containers
docker run -d -P <image_name> // background
docker stop/start/restart <existing_container_name>
docker exec -it <existing_container_name> bash // opens a terminal in a running container
docker rm <existing_container_name>
docker rmi <image_name>
docker commit <existing_container_name> <image_name>
docker run -d -it -p localport:remoteport -v <localcodepath>:<remotecodepath> <image_name> bash
docker cp foo.txt mycontainer:/foo.txt
/sbin/ip route|awk '/default/ { print $3 }' // quick and dirty hack to find the host's ip
docker load < container.tar