Tecadmin published a tutorial about how to list all packages available in a repository on Ubuntu.

How to List All Packages Available in a Repository on Ubuntu

APT or Advanced Package Tool is an software package used to install, update and remove packages on Debian based systems. It is the default package manager on Ubuntu and Debian based systems. The apt, apt-get and apt-cache are quickly used commands to manage packages and configuration on system. 

How to List All Packages Available in a Repository on Ubuntu