$ docker pull ubuntu:latest
docker run <image_name>
#运行中的容器
docker ps
docker container ls
#存在的所有容器
docker ps -a
docker run -p 8080:80 nginx
docker run -v /local/path:/mounted/volume/path -it ubuntu /bin/bash
docker run -it ubuntu /bin/bash
docker cp /dir/a.txt d3a46083eadf:/usr/src/a.txt