How to uninstall or remove icinga2-classicui software package from Debian 8 (Jessie)

You can uninstall or removes an installed icinga2-classicui package itself from Debian 8 (Jessie) through the terminal,

$ sudo apt-get remove icinga2-classicui

Uninstall icinga2-classicui including dependent package

If you would like to remove icinga2-classicui and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove icinga2-classicui

Use Purging icinga2-classicui

If you use with purge options to icinga2-classicui package all the configuration and dependent packages will be removed.

$ sudo apt-get purge icinga2-classicui

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 icinga2-classicui