How to uninstall or remove libkgraphviewer2 software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed libkgraphviewer2 package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove libkgraphviewer2

Uninstall libkgraphviewer2 including dependent package

If you would like to remove libkgraphviewer2 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libkgraphviewer2

Use Purging libkgraphviewer2

If you use with purge options to libkgraphviewer2 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libkgraphviewer2

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove libkgraphviewer2