Install Docker on Ubuntu using Script

This tutorial explains, how to install docker on Ubuntu.


Docker is a platform that combines applications and its dependencies in the form of packages called a container. We can run multiple containers on a single Operating System. Containers are not Virtual MachinesVirtual Machines requires Operating System to run applications, but containers do not. As containers don’t need an Operating System, it takes very little time to start and hence it is very faster than Virtual Machines.


Read About:  How to Install Docker on Windows 

&& How to install Ansible on Ubuntu


Install Docker on Ubuntu

Step 1- Update your Ubuntu Linux Box.

 $ sudo apt-get update -y


Step 2 –  Download and run a script to install docker.

$  curl -fsSL -o
$  sudo sh

or you can Download and run Test Script.

Download and run testing version, download and install script using the following commands.

$  curl -fsSL -o
$  sudo sh


Step 3- Add a user to the Docker group.

If you would like to use Docker with a non-root user, using the following command.

Add a new user docker-user and set a password

 $ sudo useradd docker-user

$ sudo passwd docker-user

Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully

Add docker-user to Docker group

 $ sudo usermod -aG docker docker-user

Step 4 – Check Docker Version

Check Docker Version using the following command

 $ docker – -version
Docker version 19.03.8, build afacb8b7f0

Uninstall Docker on Ubuntu

Use the following command to uninstall docker completely, including Docker Engine, CLI and Containerd Package

$ sudo apt-get purge docker-ce docker-ce-cli -y

Also delete all Docker Images, Containers, and Volumes that not automatically remove.

$ sudo rm -rf /var/lib/docker

Note: If you install docker using the script, you should update the docker using the package manager only. Don’t re-run docker script, as it can cause issues if it attempts to re-add repositories.

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