$ sudo apt-get update
$ sudo apt-get install famfamfam-silk 

famfamfam-silk is installed in your system.

Make ensure the famfamfam-silk package were installed using the commands given below,

$ sudo dpkg-query -l | grep famfamfam-silk *

You will get with famfamfam-silk package name, version, architecture and description in a table

famfamfam-silk package basic information: