chiark-really software package provides really - a tool for gaining privilege (simple, realistic sudo), 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 chiark-really
chiark-really is installed in your system.
Make ensure the chiark-really package were installed using the commands given below,
$ sudo dpkg-query -l | grep chiark-really *
You will get with chiark-really package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | chiark-really |
| Version | 4.4.2build1 |
| Description | really - a tool for gaining privilege (simple, realistic sudo) |
| Sub Section | admin |