pmk software package provides utility to configure software sources, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install pmk
pmk is installed in your system.
Make ensure the pmk package were installed using the commands given below,
$ sudo dpkg-query -l | grep pmk *
You will get with pmk package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | pmk |
| Version | 0.10.4-1 |
| Description | utility to configure software sources |
| Sub Section | devel |