$ sudo apt-get update
$ sudo apt-get install cmatrix-xfont 

cmatrix-xfont is installed in your system.

Make ensure the cmatrix-xfont package were installed using the commands given below,

$ sudo dpkg-query -l | grep cmatrix-xfont *

You will get with cmatrix-xfont package name, version, architecture and description in a table

cmatrix-xfont package basic information: