Redshift (software)

Redshift originally possessed only a command-line interface, but now has graphical user interfaces (GUIs) that support most Linux desktop environments. Those GUIs include redshift-gtk, redshift-plasmoid, and nightshift.

redshift-gtk is included in Redshift's source tree. In addition to a windowed interface, it provides a tray status icon that can enable or disable Redshift or adjust the screen's color temperature automatically.

Redshift can be opened with the use of terminal, panel launchers or startup commands: the command 'redshift -O #TEMP' (#TEMP being a number from 1000-25000) will set the temperature and the command 'redshift -x' to exit Redshift.

A simple script can be made and called upon to set the colour temp manually via a shortcut or panel launcher:

1. Create a new file and copy in the following:

   #!/bin/bash
   shouldloop=true;
   while $shouldloop; do
       read -p "What temp would you like? 1000-25000K: " scale
   
       if "$scale" -ge 1000 && "$scale" -le 25000; then
           redshift -O $scale
           shouldloop=false;
       elif $scale = "x"; then
           exit
       elif $scale = "X"; then
           exit
       else
           echo "Invalid value or outside range. x to exit..."
       fi
   done
   

2. Save the file in your /home/$user directory.
3. Change the properties of the file so it can be executed (using chmod or context menu permissions).
4. Create a new launcher ("set temp") referring to the file you have named above and select "Open in Terminal".
5. Create a new launcher ("exit redshift") with the command redshift -x (no need to open this in terminal).
6. Use the launcher to set temperature or exit Redshift.