Question: I'm trying to enter interactive mode using an official Microsoft .Net Core image and use typical .Net commands such as 'dotnet build', but all I get is an '>' cursor. What am I doing wrong?

I'm using the following command:

```
docker run -it -v $(pwd):/app' -w '/app' -p 8000:80 mcr.microsoft.com/dotnet/core/sdk /bin/bash

```

I was hoping to get a root command prompt, but all I'm getting is '>'

Answer: 
```
Usage:  docker exec [OPTIONS] CONTAINER COMMAND [ARG...]

Run a command in a running container

Options:
  -d, --detach               Detached mode: run command in the background
      --detach-keys string   Override the key sequence for detaching a
                             container
  -e, --env list             Set environment variables
  -i, --interactive          Keep STDIN open even if not attached
      --privileged           Give extended privileges to the command
  -t, --tty                  Allocate a pseudo-TTY
  -u, --user string          Username or UID (format:
                             <name|uid>[:<group|gid>])
  -w, --workdir string       Working directory inside the container

```

After running your container, run command `docker ps` to take `[Container ID]`

And after you are able to run the command like there `docker exec -it [Container ID] bash .`
It seems no one gives a direct answer, this one works for me:

```
docker run --rm -it -v $PWD:/app -w /app -p 8000:80 mcr.microsoft.com/dotnet/core/sdk /bin/bash

```