Installing Docker

Open Terminal Find the “Terminal” app and click it. Run the Easy Install Command In Terminal, type or paste this whole line and press Enter : wget -qO- https://get.docker.com/ | sh This downloads a small script and runs it. It will install Docker for you. Wait for It to Finish The script will show text as it downloads and sets up Docker. When the text stops, Docker is installed. Check Docker Works Still in Terminal, type: sudo docker run hello-world Press Enter . Docker will download a tiny test program and run it. If you see “Hello from Docker!”, it means Docker is ready. Let You Use Docker Without “sudo” (Optional) By default, you need to type sudo before every Docker command. If you want to skip typing sudo , do this: Type: sudo usermod -aG docker $USER Press Enter . Close Terminal and log out of your Ubuntu account. Then log back in. Now you can run Docker commands without sudo . For example: docker run hello-world That’s it! Docker is now installed on your Ubuntu 22.04 in just one simple step.