Install Docker on Linux

Install Docker and run your first container.

1. For a test machine, the official convenience script is the quickest. For a production server, prefer your distribution's official repository (see the Docker documentation).
2. Download, read, then run the script:

   curl -fsSL https://get.docker.com -o get-docker.sh
   less get-docker.sh
   sudo sh get-docker.sh

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3. Test with a minimal container:

   sudo docker run --rm hello-world

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4. To use docker without sudo, add yourself to the group (log out and back in required):

   sudo usermod -aG docker $USER

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5. Common commands:

   docker ps -a
   docker images
   docker system prune

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