Docker exec
docker exec
allows you to run a command in a running container.
By command, any available command (inside of container) is meant,
allowing you to start/stop/execute any kind of routine and even some complex actions.
Also combined with args -it
and bash|sh|csh|zsh
(depending on container) allows you to enter a container, just like ssh-ing it.
(It’ll throw you into your WORKDIR
)
Example:
docker exec -it ee49f9048356 bash
root@ee49f9048356 \ $
Reference
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