How to uninstall cogre from Ubuntu
To uninstall just cogre package itself from Ubuntu execute on terminal:
sudo apt-get remove cogre
Uninstall cogre and it's dependent packages
To uninstall the cogre package and any other dependant package which are no longer needed on Ubuntu.
sudo apt-get autoremove cogre
If you also want to delete configuration and/or data files of cogre from Ubuntu then this will work:
sudo apt-get purge cogre
To delete configuration and/or data files of cogre and it's dependencies from Ubuntu then execute:
sudo apt-get autoremove --purge cogre
cogre package information
Connected Graph Editor
COGRE, pronounced like cougar, is an interface to managing connected graphs, such as UML class diagrams. It can display simple graphs, and UML class diagrams. It can generate simple class diagrams from sources using Semantic. COGRE is now a part of CEDET (Collection of Emacs Development Environment Tools).
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.