Plank
Elegant, simple, clean dock
Plank is meant to be the simplest dock on the planet. The goal is to provide just what a dock needs and absolutely nothing more.
It is, however, a library which can be extended to create other dock programs with more advanced features. Thus, Plank is the underlying technology for Docky (starting in version 3.0.0) and aims to provide all the core features while Docky extends it to add fancier things like Docklets, painters, settings dialogs, etc.
Plank is a dock enabling you to start applications and manage your windows. . Plank is meant to be the simplest dock on the planet. The goal is to provide just what a dock needs and absolutely nothing more. It is, however, a library which can be extended to create other dock programs with more advanced features.
How to install Plank in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install plank in Ubuntu
sudo apt install plank
Plank Screenshots