aptsh software package provides apt interactive shell, 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 aptsh
aptsh is installed in your system.
Make ensure the aptsh package were installed using the commands given below,
$ sudo dpkg-query -l | grep aptsh *
You will get with aptsh package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Administration Utilities |
| Package | aptsh |
| Version | 0.0.7+nmu2ubuntu3 |
| Description | apt interactive shell |
| Sub Section | Admin |