filesystem

docker cp      Copy files/folders between a container and the local filesystem
Copy files/folders between a container and the local filesystem

docker diff    Inspect changes to files or directories on a container's filesystem
Inspect changes to files or directories on a container's filesystem

docker exec    Run a command in a running container
Run a command in a running container

docker export  Export a container's filesystem as a tar archive
Export a container's filesystem as a tar archive

docker import  Import the contents from a tarball to create a filesystem image
Import the contents from a tarball to create a filesystem image

docker volume  Manage volumes
Manage volumes