apt-forktracer software package provides utility for tracking non-official package versions, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install apt-forktracer
apt-forktracer is installed in your system.
Make ensure the apt-forktracer package were installed using the commands given below,
$ sudo dpkg-query -l | grep apt-forktracer *
You will get with apt-forktracer package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | apt-forktracer |
| Version | 0.5 |
| Description | utility for tracking non-official package versions |
| Sub Section | admin |