docker exec

Execute a command on an already running Docker container. More information: https://docs.docker.com/engine/reference/commandline/exec/.

docker exec --interactive --tty container_name /bin/bash

docker exec --detach container_name command

docker exec --interactive --tty --workdir path/to/directory container_name command

docker exec --interactive --detach container_name command

docker exec --interactive --tty --env variable_name=value container_name /bin/bash

docker exec --user user container_name command