aptitude software package provides terminal-based package manager, 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 aptitude
aptitude is installed in your system.
Make ensure the aptitude package were installed using the commands given below,
$ sudo dpkg-query -l | grep aptitude *
You will get with aptitude package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | aptitude |
| Version | 0.7.4-2ubuntu2 |
| Description | terminal-based package manager |
| Sub Section | admin |