Remap right shift to Down arrow key

Question

My laptop down arrow key just stopped working, so how can I remap the right shift key to work as the down arrow key?

Answer 1

xmodmap is an utility for modifying keymaps and pointer button mappings. It usually comes preinstalled with Ubuntu.

The xmodmap program is used to edit and display the keyboard modifier map and keymap table that are used by client applications to convert event keycodes into keysyms. It is usually run from the user's session startup script to configure the keyboard according to personal tastes.

For mapping a key to another, we need keycode or key symbols for the keys to be mapped. This can be done with another tool xev. It also comes along with Ubuntu. Just run xev from a terminal and press the key and notice the keycode and key symbols logged in the console. For your case, It is

state 0x11, keycode 62 (keysym 0xffe2, Shift_R), same_screen YES,state 0x10, keycode 116 (keysym 0xff54, Down), same_screen YES

To remap the key bindings as you required, Press Alt+F2 and enter the following command line xmodmap -e "keycode 116 = Shift_R"