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RedHat 9 (Linux i386) - man page for showkey (redhat section 1)

SHOWKEY(1)			     General Commands Manual			       SHOWKEY(1)

NAME
       showkey - examine the codes sent by the keyboard

SYNOPSIS
       showkey [-h|--help] [-a|--ascii] [-s|--scancodes] [-k|--keycodes]

DESCRIPTION
       showkey prints to standard output either the scan codes or the keycode or the `ascii' code
       of each key pressed.  In the first two modes  the  program  runs  until	10  seconds  have
       elapsed since the last key press or release event, or until it receives a suitable signal,
       like SIGTERM, from another process.  In `ascii' mode the program terminates when the  user
       types ^D.

       When  in  scancode dump mode, showkey prints in hexadecimal format each byte received from
       the keyboard to the standard output. A new line is printed when an interval of  about  0.1
       seconds	occurs	between the bytes received, or when the internal receive buffer fills up.
       This can be used to determine roughly, what byte sequences the keyboard sends at once on a
       given  key  press. The scan code dumping mode is primarily intended for debugging the key-
       board driver or other low level interfaces. As such it shouldn't be of  much  interest  to
       the  regular  end-user.	However,  some modern keyboards have keys or buttons that produce
       scancodes to which the kernel does not associate a keycode, and, after  finding	out  what
       these are, the user can assign keycodes with setkeycodes(8).

       When  in  the default keycode dump mode, showkey prints to the standard output the keycode
       number or each key pressed or released. The kind of the event, press or release,  is  also
       reported.   Keycodes  are  numbers assigned by the kernel to each individual physical key.
       Every key has always only one associated keycode number, whether the keyboard sends single
       or multiple scan codes when pressing it. Using showkey in this mode, you can find out what
       numbers to use in your personalized keymap files.

       When in `ascii' dump mode, showkey prints to the standard output the decimal,  octal,  and
       hexadecimal value(s) of the key pressed, according to he present keymap.

OPTIONS
       -h --help
	      showkey  prints  to  the standard error output its version number, a compile option
	      and a short usage message, then exits.

       -s --scancodes
	      Starts showkey in scan code dump mode.

       -k --keycodes
	      Starts showkey in keycode dump mode. This is the	default,  when	no  command  line
	      options are present.

       -a --ascii
	      Starts showkey in `ascii' dump mode.

SEE ALSO
       loadkeys(1), dumpkeys(1), keymaps(5), setkeycodes(8)

					    1 Feb 1998				       SHOWKEY(1)


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