grail-test-edge command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

grail-test-edge: command not found

or when using sudo you get the following error message

sudo: grail-test-edge: command not found

Solutions to grail-test-edge: command not found

How To Fix grail-test-edge: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu grail-test-edge is provided by grail-tools package.

grail-tools is:

This library consists of an interface and tools for handling gesture recognition and gesture instantiation. Applications can use the grail callbacks to receive gesture primitives and raw input events from the underlying kernel device.

This package provides some test tools for the grail library.

To fix this problem, we can install more using the command below.

sudo apt-get -y install grail-tools

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install grail-tools.

sudo apt -y install grail-tools

Or if you have aptitude installed you can use the following command.

sudo aptitude install grail-tools

Summary

In this tutorial we learn how to fix grail-test-edge command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.