gammastep command not found

Introduction

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

gammastep: command not found

or when using sudo you get the following error message

sudo: gammastep: command not found

Solutions to gammastep: command not found

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

In Ubuntu gammastep is provided by gammastep package.

gammastep is:

Gammastep automatically adjusts the color temperature of computer displays to help reduce the eye strain that comes with working in low-light conditions.

Based on the geographical location of the computer system, Gammastep will keep the screen at the default bluish hue during daytime but adjust to an orange or reddish color in the evening hours and nighttime.

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

sudo apt-get -y install gammastep

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

You can also use apt command to install gammastep.

sudo apt -y install gammastep

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

sudo aptitude install gammastep

Summary

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