# showkey > 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 scancodes in hexadecimal: `sudo showkey {{-s|--scancodes}}` - Display keycodes in decimal (default): `sudo showkey {{-k|--keycodes}}` - Display keycodes in ASCII, decimal, and hexadecimal: `sudo showkey {{-a|--ascii}}` - Exit the program: `Ctrl + d`