help2man software package provides Automatic manpage generator, 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 help2man
help2man is installed in your system.
Make ensure the help2man package were installed using the commands given below,
$ sudo dpkg-query -l | grep help2man *
You will get with help2man package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Development |
| Package | help2man |
| Version | 1.40.4ubuntu1 |
| Description | Automatic manpage generator |
| Sub Section | devel |