Check contents of folder in Docker container

Question

I'm trying to find out if /opt/refresh_key.sh exists in my docker container. I've tried the likes of docker container inspect container_name and also docker run -it image_name sh but neither seem to be what I need.

Answer 1

Docker run launch a new container. If you want to dive inside your existing container you should do:

docker exec -it <container-name> /bin/bash

and then you will have access to the filesystem of the existing container.

You can find container-name by doing docker ps .

Answer 2

Try the following :

docker exec -it <contailer-id> [[ -f "/bin/sh" ]] && echo "exists"

Place your file name in place of /bin/sh