- Start a container based on that image, and attach to a bash shell in it: `docker run -v "$(PWD)":/assign9 -it assign9`.
- Start a container based on that image, and attach to a bash shell in it: `docker run -v "$(PWD)":/assign9 -it assign9` (``docker run -v `pwd`:/assign9 -it assign9`` for `tcsh`).
- You will drop right into `/assign9`, which is where the enclosing
directory is mounted in the container.
- Any changes you make either in this container directory, or