# Install Docker On Debian/Ubuntu
Author: i12bretro
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1. Log into the Linux device
2. Execute the following commands in a terminal:
   `# update software repositories
   sudo apt update
   # install necessary packages for https apt calls
   sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
   # add docker GPG key
   curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
   # add docker software repository
   sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
   # install docker
   sudo apt update
   sudo apt install docker-ce docker-ce-cli containerd.io
   # create a docker group
   sudo groupadd docker
   # add the current user to the docker group
   sudo usermod -aG docker $USER`
3. To run a basic Docker container, run the following command in a terminal:
   `sudo docker run hello-world`
4. Docker will download the hello-world container and execute it, displaying following output:

   Hello from Docker!
   This message shows that your installation appears to be working correctly.

   To generate this message, Docker took the following steps:
   1. The Docker client contacted the Docker daemon.
   2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
   (amd64)
   3. The Docker daemon created a new container from that image which runs the
   executable that produces the output you are currently reading.
   4. The Docker daemon streamed that output to the Docker client, which sent it
   to your terminal.

Source: https://docs.docker.com/engine/install/debian/