Docker exec

https://docs.docker.com/engine/reference/commandline/exec/

docker exec -it my_container sh -c "echo a && echo b"

• Login/Connect into a running container:
  • docker exec -it <my_container_name> bash
  • docker exec -it <my_container_name> ps
  • docker exec -it <my_container_name> sh
  • docker run -it --user USER_NAME CONTAINER_NAME

docker exec -it CONTAINER_NAME sh
unable to find user nginx: no matching entries in passwd file

docker exec -it festive_lewin sh
Error response from daemon: Container 2391a43638f822b1dc3e8d8c79c461959de2238c48d580c7092d5a278e5bd792 is not running

docker exec -u 0 -it CONTAINER_NAME  bash

Show Environment variables

docker exec CONTAINER_NAME env
docker exec CONTAINER_NAME printenv

Related commands

• kubectl exec
• podman exec
• crictl exec
• docker system events --since '240m' | grep bash
• podman attach
• docker attach
• docker-compose exec
• Dsh Bash alias function for docker exec -it CONTAINER_NAME sh
• is restarting, wait until the container is running
• aws ecs execute-command
• CTRL-p CTRL-q detach key sequence produces no effect, but pressing CTRL-c or typing exit terminates the container.

See also

• docker [config | pull | push | run | start, | stop| cp | events | info | version | build | commit | image | images | image ls |image inspect | rmi | rm | tag | exec | rename | manifest | save | service update | load ], docker --help
• Docker: docker-compose, Docker Desktop, Docker Scout, Docker Swarm, Docker Volumes, Docker images management, docker network, docker inspect, docker volume inspect, Dockerfile, Docker Engine release notes,docker kill, moby, Docker-in-Docker, docker context, buildx, docker tag, docker system prune, Docker Hub, hub-tool, /etc/docker/daemon.json, hostconfig.json, dockerd, logs, Docker logging, Backup, docker service, depends on, --dns, --filter, --mount, docker login, docker build, apt remove docker.io, .dockerignore, docker context ls | docker-machine, .docker/, PWD, $HOME/.docker/config.json, Docker ID, --env-file, docker --help

https://docs.docker.com/engine/reference/commandline/exec/

https://docs.docker.com/engine/reference/commandline/exec/