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

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

$ sudo apt-get remove alsamixergui

Uninstall alsamixergui including dependent package

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

$ sudo apt-get remove --auto-remove alsamixergui

Use Purging alsamixergui

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

$ sudo apt-get purge alsamixergui

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 alsamixergui