ninja software package provides Privilege escalation detection system for GNU/Linux, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ninja
ninja is installed in your system.
Make ensure the ninja package were installed using the commands given below,
$ sudo dpkg-query -l | grep ninja *
You will get with ninja package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | ninja |
| Version | 0.1.3-2 |
| Description | Privilege escalation detection system for GNU/Linux |
| Sub Section | Admin |