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XMODMAP(1)							    XMODMAP(1)

NAME
       xmodmap	- utility for modifying	keymaps	and pointer button mappings in
       X

SYNOPSIS
       xmodmap [-options ...] [filename]

DESCRIPTION
       The xmodmap program is used to edit and display the  keyboard  modifier
       map  and	 keymap	 table that are	used by	client applications to convert
       event keycodes into keysyms.  It	is usually run from the	user's session
       startup	script to configure the	keyboard according to personal tastes.

OPTIONS
       The following options may be used with xmodmap:

       -display	display
	       This option specifies the host and display to use.

       -help   This option indicates that a brief description of  the  command
	       line arguments should be	printed	on the standard	error channel.
	       This will be done whenever an unhandled argument	 is  given  to
	       xmodmap.

       -grammar
	       This  option  indicates	that  a	 help  message	describing the
	       expression grammar used in files	and with -e expressions	should
	       be printed on the standard error.

       -verbose
	       This  option indicates that xmodmap should print	logging	infor-
	       mation as it parses its input.

       -quiet  This option  turns  off	the  verbose  logging.	 This  is  the
	       default.

       -n      This  option  indicates that xmodmap should not change the map-
	       pings, but should display what it would do, like	 make(1)  does
	       when given this option.

       -e expression
	       This option specifies an	expression to be executed.  Any	number
	       of expressions may be specified from the	command	line.

       -pm     This option indicates that the current modifier map  should  be
	       printed on the standard output.

       -pk     This  option  indicates that the	current	keymap table should be
	       printed on the standard output.

       -pke    This option indicates that the current keymap table  should  be
	       printed	on the standard	output in the form of expressions that
	       can be fed back to xmodmap.

       -pp     This option indicates that the current pointer  map  should  be
	       printed on the standard output.

       -       A lone dash means that the standard input should	be used	as the
	       input file.

       The filename specifies a	file containing	xmodmap	expressions to be exe-
       cuted.	This  file is usually kept in the user's home directory	with a
       name like .xmodmaprc.

EXPRESSION GRAMMAR
       The xmodmap program reads a list	of expressions	and  parses  them  all
       before  attempting  to  execute any of them.  This makes	it possible to
       refer to	keysyms	that are being redefined in a natural way without hav-
       ing to worry as much about name conflicts.

       keycode NUMBER =	KEYSYMNAME ...
	       The list	of keysyms is assigned to the indicated	keycode	(which
	       may be specified	in decimal, hex	or octal and can be determined
	       by  running  the	 xev  program.	 Up  to	 eight	keysyms	may be
	       attached	to a key, however the last four	are not	 used  in  any
	       major  X	 server	implementation.	 The first keysym is used when
	       no modifier key is pressed in conjunction with  this  key,  the
	       second  with  Shift, the	third when the Mode_Switch key is used
	       with this key and the fourth  when  both	 the  Mode_Switch  and
	       Shift keys are used.

       keycode any = KEYSYMNAME	...
	       If  no  existing	key has	the specified list of keysyms assigned
	       to it, a	spare key on the keyboard is selected and the  keysyms
	       are  assigned  to  it.  The list	of keysyms may be specified in
	       decimal,	hex or octal.

       keysym KEYSYMNAME = KEYSYMNAME ...
	       The KEYSYMNAME on the left hand side is translated into	match-
	       ing  keycodes  used to perform the corresponding	set of keycode
	       expressions.  The list of keysym	names  may  be	found  in  the
	       header  file  _X11/keysymdef.h_ (without	the XK_	prefix)	or the
	       keysym database __projectroot__/lib/X11/XKeysymDB.   Note  that
	       if the same keysym is bound to multiple keys, the expression is
	       executed	for each matching keycode.

       clear MODIFIERNAME
	       This removes all	entries	in the modifier	map for	the given mod-
	       ifier,  where valid name	are: Shift, Lock, Control, Mod1, Mod2,
	       Mod3, Mod4, and Mod5 (case does not matter in  modifier	names,
	       although	 it  does  matter  for all other names).  For example,
	       ``clear Lock'' will remove all any keys that were bound to  the
	       shift lock modifier.

       add MODIFIERNAME	= KEYSYMNAME ...
	       This  adds  all	keys containing	the given keysyms to the indi-
	       cated modifier map.  The	keysym names are evaluated  after  all
	       input expressions are read to make it easy to write expressions
	       to swap keys (see the EXAMPLES section).

       remove MODIFIERNAME = KEYSYMNAME	...
	       This removes all	keys containing	the  given  keysyms  from  the
	       indicated modifier map.	Unlike add, the	keysym names are eval-
	       uated as	the line is read in.  This allows you to  remove  keys
	       from  a	modifier  without having to worry about	whether	or not
	       they have been reassigned.

       pointer = default
	       This sets the pointer map back to its default settings  (button
	       1 generates a code of 1,	button 2 generates a 2,	etc.).

       pointer = NUMBER	...
	       This sets to pointer map	to contain the indicated button	codes.
	       The list	always starts with the first physical button.

       Lines that begin	with an	exclamation point (!) are taken	as comments.

       If you want to change the binding of a  modifier	 key,  you  must  also
       remove it from the appropriate modifier map.

EXAMPLES
       Many  pointers are designed such	that the first button is pressed using
       the index finger	of the right hand.  People who	are  left-handed  fre-
       quently	find  that  it is more comfortable to reverse the button codes
       that get	generated so that the primary  button  is  pressed  using  the
       index  finger  of  the  left  hand.   This  could be done on a 3	button
       pointer as follows:

	    %  xmodmap -e "pointer = 3 2 1"

       Many applications support the notion of Meta keys (similar  to  Control
       keys  except that Meta is held down instead of Control).	 However, some
       servers do not have a Meta keysym in the	default	keymap table,  so  one
       needs  to  be added by hand.  The following command will	attach Meta to
       the Multi-language key (sometimes labeled Compose Character).  It  also
       takes advantage of the fact that	applications that need a Meta key sim-
       ply need	to get the keycode and don't require the keysym	to be  in  the
       first  column  of  the keymap table.  This means	that applications that
       are looking for a Multi_key (including the default modifier map)	 won't
       notice any change.

	    %  xmodmap -e "keysym Multi_key = Multi_key	Meta_L"

       Similarly,  some	 keyboards  have  an Alt key but no Meta key.  In that
       case the	following may be useful:

	    %  xmodmap -e "keysym Alt_L	= Meta_L Alt_L"

       One of the more simple, yet convenient, uses of xmodmap is to  set  the
       keyboard's  "rubout"  key  to  generate an alternate keysym.  This fre-
       quently involves	exchanging Backspace with Delete to be	more  comfort-
       able  to	 the  user.  If	the ttyModes resource in xterm is set as well,
       all terminal emulator windows will use the same key for erasing charac-
       ters:

	    %  xmodmap -e "keysym BackSpace = Delete"
	    %  echo "XTerm*ttyModes:  erase ^?"	| xrdb -merge

       Some keyboards do not automatically generate less than and greater than
       characters when the comma and period keys are  shifted.	 This  can  be
       remedied	 with  xmodmap	by  resetting  the  bindings for the comma and
       period with the following scripts:

	    !
	    ! make shift-, be <	and shift-. be >
	    !
	    keysym comma = comma less
	    keysym period = period greater

       One of the more irritating differences between keyboards	is  the	 loca-
       tion of the Control and Shift Lock keys.	 A common use of xmodmap is to
       swap these two keys as follows:

	    !
	    ! Swap Caps_Lock and Control_L
	    !
	    remove Lock	= Caps_Lock
	    remove Control = Control_L
	    keysym Control_L = Caps_Lock
	    keysym Caps_Lock = Control_L
	    add	Lock = Caps_Lock
	    add	Control	= Control_L

       The keycode command is useful for assigning the same keysym to multiple
       keycodes.   Although  unportable,  it  also  makes it possible to write
       scripts that can	reset the keyboard to a	known  state.	The  following
       script  sets  the  backspace  key  to generate Delete (as shown above),
       flushes all existing caps lock bindings,	makes the CapsLock  key	 be  a
       control	key, make F5 generate Escape, and makes	Break/Reset be a shift
       lock.

	    !
	    ! On the HP, the following keycodes	have key caps as listed:
	    !
	    !	  101  Backspace
	    !	   55  Caps
	    !	   14  Ctrl
	    !	   15  Break/Reset
	    !	   86  Stop
	    !	   89  F5
	    !
	    keycode 101	= Delete
	    keycode 55 = Control_R
	    clear Lock
	    add	Control	= Control_R
	    keycode 89 = Escape
	    keycode 15 = Caps_Lock
	    add	Lock = Caps_Lock

ENVIRONMENT
       DISPLAY to get default host and display number.

SEE ALSO
       X(7), xev(1), Xlib documentation	on key and pointer events

BUGS
       Every time a keycode expression is evaluated, the  server  generates  a
       MappingNotify  event  on	 every client.	This can cause some thrashing.
       All of the changes  should  be  batched	together  and  done  at	 once.
       Clients	that  receive  keyboard	 input and ignore MappingNotify	events
       will not	notice any changes made	to keyboard mappings.

       Xmodmap should generate "add" and  "remove"  expressions	 automatically
       whenever	a keycode that is already bound	to a modifier is changed.

       There  should be	a way to have the remove expression accept keycodes as
       well as keysyms for those times when you	really mess up your  mappings.

AUTHOR
       Jim  Fulton,  MIT  X  Consortium,  rewritten from an earlier version by
       David Rosenthal of Sun Microsystems.

X Version 11			  Release 6.6			    XMODMAP(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXPRESSION GRAMMAR | EXAMPLES | ENVIRONMENT | SEE ALSO | BUGS | AUTHOR

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