screentest command not found

Introduction

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

screentest: command not found

or when using sudo you get the following error message

sudo: screentest: command not found

Solutions to screentest: command not found

How To Fix screentest: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu screentest is provided by screentest package.

screentest is:

Screentest is a CRT and LCD screen testing utility. Ever wondered how good the quality (sharpness, linearity, convergence, etc.) of your CRT/LCD monitor is? Screentest displays the testing patterns which you can use to evaluate the quality of your monitor.

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

sudo apt-get -y install screentest

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

You can also use apt command to install screentest.

sudo apt -y install screentest

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

sudo aptitude install screentest

Summary

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