docker pull i386/alpine
docker run -dit i386/alpine
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d285e42f37b8 i386/alpine "/bin/sh" 3 seconds ago Up 2 seconds frosty_newton
docker attach frosty_newton
docker start --interactive frosty_newton
docker cp ./scarlet.tar zen_mccarthy
docker ps --size
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES SIZE
6128ba626b22 i386/alpine "/bin/sh" 3 minutes ago Up 3 minutes zen_mccarthy 20.8MB (virtual 27MB)