dockerfile run bash command code example

Example 1: docker interactive shell

docker exec -it [containerid/name] [shell]

#Example
docker exec -it fa80b69 bash
#if its an apline container use "sh" instead of "bash"

Example 2: docker run command on container

sudo docker exec -it <container name> <command>

Example 3: docker how to run existing container

docker start <container-name/ID>