Though I could find some answer in this link. Its not doing anything what I was intended to do. When I try to run the command sudo apt-get remove unity-lens-shopping. I have the result as shown Another method was to uninstall it from Ubuntu Software Center. But when I go to Ubuntu Software Center I do not find any results for Amazon even in the Installed Section. Why is that? I am providing Screenshots below Screenshot showing Installed section which does not contain Amazon
Amazon has been installed into the Unity desktop as part of a package called Unity-Webapps-Common.
You could if you wanted to, open a terminal window and run the following command:
$ sudo apt purge ubuntu-web-launchers
However, it's not recommended. The unity-webapps-common is a metapackage containing lots of other packages. If you uninstall this application then you will lose other things that you may need.
Instead, try to remove any files related to amazon manually.
Open a terminal window and type in the following commands:
sudo rm /usr/share/applications/ubuntu-amazon-default.desktop sudo rm /usr/share/unity-webapps/userscripts/unity-webapps-amazon/Amazon.user.js sudo rm /usr/share/unity-webapps/userscripts/unity-webapps-amazon/manifest.json