How to Reduce Computer Eye Strain on Debian Stretch 9 Linux Desktops

Installing

4. 4. Installing PIP

   Install Python 2/3 PIP for Red Hat GNU/Linux

   Python PIP Install Guide

   Python pip Linux Setup

5. 5. Installing Dependencies

   Then Install Required Packages.

   sudo pip install pexpect

   And again:

   sudo apt install python-appindicator 
   python-xdg python-pexpect python-gconf 
   python-gtk2 python-glade2 libxxf86vm1

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

6. 6. Installing F Lux

   Installing f.lux GUI
   First, Access the Target:

   cd /tmp/xflux-gui

   And then to Make Setup:

   sudo python ./setup.py install