gzrt software package provides gzip recovery toolkit, 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 gzrt
gzrt is installed in your system.
Make ensure the gzrt package were installed using the commands given below,
$ sudo dpkg-query -l | grep gzrt *
You will get with gzrt package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Utilities |
| Package | gzrt |
| Version | 0.5-2ubuntu1 |
| Description | gzip recovery toolkit |
| Sub Section | Utils |