$ sudo apt-get update
$ sudo apt-get install gforge-plugin-projectlabels 

gforge-plugin-projectlabels is installed in your system.

Make ensure the gforge-plugin-projectlabels package were installed using the commands given below,

$ sudo dpkg-query -l | grep gforge-plugin-projectlabels *

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

gforge-plugin-projectlabels package basic information: