grail-tools software package provides Gesture Recognition And Instantiation Library - test tools, 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 grail-tools
grail-tools is installed in your system.
Make ensure the grail-tools package were installed using the commands given below,
$ sudo dpkg-query -l | grep grail-tools *
You will get with grail-tools package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Library development |
| Package | grail-tools |
| Version | 3.1.0+16.04.20160125-0ubuntu1 |
| Description | Gesture Recognition And Instantiation Library - test tools |
| Sub Section | Devel |