How To Install redshift on CentOS 8

redshift is Adjusts the color temperature of your screen according to time of day

Introduction

In this tutorial we learn how to install redshift on CentOS 8.

What is `redshift`

Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night. The color temperature is set according to the position of the sun. A different color temperature is set during night and daytime. During twilight and early morning, the color temperature transitions smoothly from night to daytime temperature to allow your eyes to slowly adapt. This package provides the base program.

We can use yum or dnf to install redshift on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install redshift.

Install redshift on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install redshift using dnf by running the following command:

sudo dnf -y install redshift

Install redshift on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install redshift using yum by running the following command:

sudo yum -y install redshift

How To Uninstall redshift on CentOS 8

To uninstall only the redshift package we can use the following command:

sudo dnf remove redshift

redshift Package Contents on CentOS 8

/usr/bin/redshift
/usr/lib/.build-id
/usr/lib/.build-id/f0
/usr/lib/.build-id/f0/dc933dcb20701849ed62a2ff2bdf2d1979d501
/usr/lib/systemd/user/redshift.service
/usr/share/applications/redshift.desktop
/usr/share/doc/redshift
/usr/share/doc/redshift/CONTRIBUTING.md
/usr/share/doc/redshift/DESIGN
/usr/share/doc/redshift/NEWS
/usr/share/doc/redshift/NEWS.md
/usr/share/doc/redshift/README
/usr/share/doc/redshift/README-colorramp
/usr/share/doc/redshift/README.md
/usr/share/doc/redshift/redshift.conf.sample
/usr/share/licenses/redshift
/usr/share/licenses/redshift/COPYING
/usr/share/locale/ar/LC_MESSAGES/redshift.mo
/usr/share/locale/be/LC_MESSAGES/redshift.mo
/usr/share/locale/bg/LC_MESSAGES/redshift.mo
/usr/share/locale/ca/LC_MESSAGES/redshift.mo
/usr/share/locale/cs/LC_MESSAGES/redshift.mo
/usr/share/locale/da/LC_MESSAGES/redshift.mo
/usr/share/locale/de/LC_MESSAGES/redshift.mo
/usr/share/locale/el/LC_MESSAGES/redshift.mo
/usr/share/locale/en_GB/LC_MESSAGES/redshift.mo
/usr/share/locale/es/LC_MESSAGES/redshift.mo
/usr/share/locale/et/LC_MESSAGES/redshift.mo
/usr/share/locale/eu/LC_MESSAGES/redshift.mo
/usr/share/locale/fi/LC_MESSAGES/redshift.mo
/usr/share/locale/fr/LC_MESSAGES/redshift.mo
/usr/share/locale/gl/LC_MESSAGES/redshift.mo
/usr/share/locale/he/LC_MESSAGES/redshift.mo
/usr/share/locale/hi/LC_MESSAGES/redshift.mo
/usr/share/locale/hr/LC_MESSAGES/redshift.mo
/usr/share/locale/hu/LC_MESSAGES/redshift.mo
/usr/share/locale/it/LC_MESSAGES/redshift.mo
/usr/share/locale/ja/LC_MESSAGES/redshift.mo
/usr/share/locale/ka/LC_MESSAGES/redshift.mo
/usr/share/locale/lt/LC_MESSAGES/redshift.mo
/usr/share/locale/nb/LC_MESSAGES/redshift.mo
/usr/share/locale/nl/LC_MESSAGES/redshift.mo
/usr/share/locale/pl/LC_MESSAGES/redshift.mo
/usr/share/locale/pt/LC_MESSAGES/redshift.mo
/usr/share/locale/pt_BR/LC_MESSAGES/redshift.mo
/usr/share/locale/ro/LC_MESSAGES/redshift.mo
/usr/share/locale/ru/LC_MESSAGES/redshift.mo
/usr/share/locale/sr/LC_MESSAGES/redshift.mo
/usr/share/locale/sv/LC_MESSAGES/redshift.mo
/usr/share/locale/tr/LC_MESSAGES/redshift.mo
/usr/share/locale/uk/LC_MESSAGES/redshift.mo
/usr/share/locale/zh_CN/LC_MESSAGES/redshift.mo
/usr/share/locale/zh_TW/LC_MESSAGES/redshift.mo
/usr/share/man/man1/redshift.1.gz

References

redshift website

Summary

In this tutorial we learn how to install redshift on CentOS 8 using yum and dnf.