How to uninstall or remove libinsighttoolkit3.20 software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed libinsighttoolkit3.20 package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove libinsighttoolkit3.20

Uninstall libinsighttoolkit3.20 including dependent package

If you would like to remove libinsighttoolkit3.20 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libinsighttoolkit3.20

Use Purging libinsighttoolkit3.20

If you use with purge options to libinsighttoolkit3.20 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libinsighttoolkit3.20

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 libinsighttoolkit3.20