apt-forktracer software package provides a utility for tracking non-official package versions, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) 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 12 04 lts precise pangolin |
| Section | Administration Utilities |
| Package | apt-forktracer |
| Version | 0.4 |
| Description | a utility for tracking non-official package versions |
| Sub Section | Admin |