Docker Quick Start on Ubuntu 14.04 Trusty
How to Install and Getting Started with Docker, Docker Engine on Ubuntu 14.04 Trusty Tahr LTS GNU/Linux desktop/server.
Docker is a Command-line Program, a background Daemon, and a set of Remote Services that take a Logistical Approach to Solving common Software Problems and Simplifying your experience Installing, Running, Publishing, and Removing Software.
Getting Started with Docker on Ubuntu is Easy, it’s enough to Install it and then Use the Docker Engine to Create and Manage Containers.

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Open a Shell session
Ctrl+Alt+t to open a Terminal emulator on desktop
(Press “Enter” to Execute Commands) -
Installing Docker Engine
(You need of SuperUser Privileges)sudo wget -qO- https://get.docker.com/ | sh
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Testing Docker Installation.
docker --version
The Output should show the Docker Version…
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How to Quick Start with Docker and Docker Containers