~/.Xmodmap fájt létre hozni ezzel a tartalommal:
keycode 87 = 1
keycode 88 = 2
keycode 89 = 3
keycode 83 = 4
keycode 84 = 5
keycode 85 = 6
keycode 79 = 7
keycode 80 = 8
keycode 81 = 9
keycode 90 = 0
keycode 104 = Return
keycode 86 = plus
keycode 82 = minus
keycode 106 = slash
keycode 63 = asterisk