How to uninstall classicmenu-indicator from Ubuntu

Uninstall classicmenu-indicator

To uninstall just classicmenu-indicator package itself from Ubuntu execute on terminal:

sudo apt-get remove classicmenu-indicator

Uninstall classicmenu-indicator and it's dependent packages

To uninstall the classicmenu-indicator package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove classicmenu-indicator

Purging classicmenu-indicator

If you also want to delete configuration and/or data files of classicmenu-indicator from Ubuntu then this will work:

sudo apt-get purge classicmenu-indicator

To delete configuration and/or data files of classicmenu-indicator and it's dependencies from Ubuntu then execute:

sudo apt-get autoremove --purge classicmenu-indicator

classicmenu-indicator package information

name classicmenu-indicator
section gnome

indicator showing the main menu from Gnome Classic

website software/ classicmenu-indicator/ 

More information about apt-get remove

Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.

apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.

See Also

How to install classicmenu-indicator package on Ubuntu