$ sudo apt-get update
$ sudo apt-get install libpostscriptbarcode 

libpostscriptbarcode is installed in your system.

Make ensure the libpostscriptbarcode package were installed using the commands given below,

$ sudo dpkg-query -l | grep libpostscriptbarcode *

You will get with libpostscriptbarcode package name, version, architecture and description in a table

libpostscriptbarcode package basic information: