$ sudo apt-get update
$ sudo apt-get install gammaray-plugin-positioning 

gammaray-plugin-positioning is installed in your system.

Make ensure the gammaray-plugin-positioning package were installed using the commands given below,

$ sudo dpkg-query -l | grep gammaray-plugin-positioning *

You will get with gammaray-plugin-positioning package name, version, architecture and description in a table

gammaray-plugin-positioning package basic information: