showkey

Display the keycode of pressed keys on the keyboard, helpful for debugging keyboard-related issues and key remapping. More information: https://manned.org/showkey.

• View keycodes in decimal:

sudo showkey

• Display [s]cancodes in hexadecimal:

sudo showkey {{-s|--scancodes}}

• Display [k]eycodes in decimal (default):

sudo showkey {{-k|--keycodes}}

• Display keycodes in [a]SCII, decimal, and hexadecimal:

sudo showkey {{-a|--ascii}}

• Exit the program:

Ctrl + d