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Linux in a Nutshell, 6th Edition by Robert Love, Stephen Figgins, Ellen Siever, Arnold Robbins

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Name

showkey

Synopsis

showkey [options]

Print keycodes, scancodes, or ASCII codes of keys pressed on the keyboard. The default is to show keycodes. In keycode and scancode mode, the program terminates 10 seconds after the last key is pressed. In ASCII mode, press Ctrl-D to exit. This command may not function properly under the X Window System, which also reads from the console device.

Options

-a, --ascii

Print the ASCII character, decimal, octal, and hexadecimal values of keys pressed.

-h, --help

Print version number and help message, then exit.

-k, --keycodes

Print keycodes associated with key-press events. This is the default mode.

-s, --scancodes

Print the keyboard scancodes associated with key-press events.

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