Comment 7 for bug 1211966

Latest GeoGebra Classic 6 version can be installed from "official" Geogebra repository, see:

https://wiki.geogebra.org/en/Reference:GeoGebra_Installation#GeoGebra_Classic_6

the .deb and .rpm installers will automatically add the official GeoGebra repository to the package management system on the workstation. This will enable automatic update of GeoGebra every time a new version is released. If you want to include GeoGebra in your custom Linux distribution with GeoGebra included, the best way is to add the official GeoGebra repository (http://www.geogebra.net/linux/) to your package management system. The GPG key of the repository is at https://<email address hidden> - the name of the package is geogebra-classic.
 Installing GeoGebra directly from the command line: for Ubuntu, these two commands eliminate the need for downloading .deb files:

   $ sudo apt-add-repository -u 'deb http://www.geogebra.net/linux/ stable main'
   $ sudo apt install geogebra-classic