Docker Shortcuts

Install Docker

Installing Docker on Debian based distro

sudo apt-get install docker

Allow non-root users to run docker

sudo usermod -aG docker $USER

Installing Docker on Windows

Go to, download and install it. Once Docker is installed, use Docker Interactive Window or Powershell to use the following commands.

Login to docker

To use Docker’s public images, you must have a Docker ID or account, go to and register your account if you don’t have one as yet. Otherwise, run the following command:

docker login

Checking if there’s any container running

docker ps

List all containers, event if they aren’t running

docker ps -a

Running a container

Docker run creates a new container from the docker image and starts the container docker run tutum/hello-world

docker run --name web1 tutum/hello-world

Running a docker container on a particular port

# docker run --name web2 -p exposePORTt:localPort tutum/hello-world
docker run --name web2 -p 8080:80 tutum/hello-world

Running docker containers in the background using daemon

Use -d or –detach to run a container in the background.

docker run -d --name web3 -p 8080:80 tutum/hello-world
docker run -d --name web4 -p 8081:80 tutum/hello-world

Get logs for a container

docker logs web3
for dlog in `docker ps -a -q`; do docker logs $dlog; done

Stopping a docker container

docker stop web3
docker stop $(docker ps -a -q)

Starting a docker container

docker start web3

Removing a container

# docker rm <container-name>
docker rm web3
docker rm $(docker ps -a -q)

Stop and remove all containers

docker rm $(docker ps -a -q) & docker stop $(docker ps -a -q)

List docker images

docker images

Moving Images from one host to another

You will need to save the Docker image as a tar file:

docker save -o <path for generated tar file> <image name>

Then copy your image to a new system with regular file transfer tools such as cp, scp or rsync(preferred for big files). After that you will have to load the image into Docker

docker load -i <path to image tar file>

Remove a docker image

docker rmi wordpress

if you do docker images and see <none>:<none> images in the list, these are dangling images and needs to be pruned, else they will unnecessary allocate your disks space. Run the following comand to remove dangling images

docker rmi $(docker images -f "dangling=true" -q)
docker rmi $(docker images -q)
docker system prune -a

It will output:

WARNING! This will remove:
     - all stopped containers
     - all volumes not used by at least one container
     - all networks not used by at least one container
     - all images without at least one container associated to them
Are you sure you want to continue? [y/N] y