How to uninstall libcqrlib2-dev from Ubuntu

Uninstall libcqrlib2-dev

To uninstall just libcqrlib2-dev package itself from Ubuntu execute on terminal:

sudo apt-get remove libcqrlib2-dev

Uninstall libcqrlib2-dev and it's dependent packages

To uninstall the libcqrlib2-dev package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove libcqrlib2-dev

Purging libcqrlib2-dev

If you also want to delete configuration and/or data files of libcqrlib2-dev from Ubuntu then this will work:

sudo apt-get purge libcqrlib2-dev

To delete configuration and/or data files of libcqrlib2-dev and it's dependencies from Ubuntu then execute:

sudo apt-get autoremove --purge libcqrlib2-dev

libcqrlib2-dev package information

name libcqrlib2-dev
section libdevel
description

Library and headers for quaternion arithmetic and rotation math

website sourceforge.net/ projects/ cqrlib/ 
maintainer ubuntu-devel-discuss@lists.ubuntu.com

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 libcqrlib2-dev package on Ubuntu