update key mapping

update-keymapping.md

use xenv to capture the keys which you want to replace

• Get original key mapping using xmodmap -pke > ~/keymaptable

$ cat ~/.Xmodmap
! -*- coding: utf-8 -*-
! swapped 49 with 94
keycode  94 = grave asciitilde dead_circumflex degree U2032 U2033 grave asciitilde
keycode  49 = less greater less greater bar brokenbar bar dead_belowmacron

Reload after applying the config xmodmap ~/.Xmodmap

Create this file to make sure its read when x11 starts

$ cat  ~/.xinitrc
if [ -s ~/.Xmodmap ]; then
    xmodmap ~/.Xmodmap
fi

---

create file

cat ~/.xinitrc
xmodmap .Xmodmap

cat ~/.Xmodmap
clear control
keycode 94 = Control_R
keycode 37 = Control_L
keycode 105 = Control_L
add control = Control_L Control_R