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

  • 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