I am using Keyboard Layouts Plugin to switch between two layouts.
I want to remap Caps Lock to underscore _.
First I empty Caps Lock, or otherwise Caps Lock will do both – toggle caps and produce underscore character and then map caps lock to underscore
xmodmap -e "keycode 66 = "
xmodmap -e "keycode 66 = underscore"
Problem? This resets every time I log out or change something in Keyboard Layouts Plugin preferences. I want this to be permanent.