$ sudo apt-get update
$ sudo apt-get install libfilter-template-perl 

libfilter-template-perl is installed in your system.

Make ensure the libfilter-template-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libfilter-template-perl *

You will get with libfilter-template-perl package name, version, architecture and description in a table

libfilter-template-perl package basic information: