Difference between revisions of "Xmodmap"

From ArchWiki
Jump to: navigation, search
(Additional resources: rollingrelease.com is some sort of content farm now... :-()
(Reverse scrolling: flag for merging with Mouse buttons)
 
(77 intermediate revisions by 24 users not shown)
Line 1: Line 1:
[[Category:Input devices]]
+
{{Lowercase title}}
[[Category:X Server]]
+
[[Category:Keyboards]]
 +
[[Category:X server]]
 +
[[de:Xmodmap]]
 
[[fr:Xmodmap]]
 
[[fr:Xmodmap]]
{{Article summary start}}
+
[[ja:Xmodmap]]
{{Article summary text|A general overview of modifying keymaps and pointer mappings with xmodmap.}}
+
[[ru:Xmodmap]]
{{Article summary heading|Related}}
+
[[zh-CN:Xmodmap]]
{{Article summary wiki|Xorg}}
+
{{Related articles start}}
{{Article summary wiki|Extra Keyboard Keys}}
+
{{Related|Xorg}}
{{Article summary wiki|Extra Keyboard Keys in Xorg}}
+
{{Related|Extra keyboard keys}}
{{Article summary wiki|Extra Keyboard Keys in Console}}
+
{{Related|Extra keyboard keys in Xorg}}
{{Article summary end}}
+
{{Related|Extra keyboard keys in console}}
 +
{{Related|Xbindkeys}}
 +
{{Related articles end}}
  
'''Xmodmap''' is a utility for modifying keymaps and pointer button mappings in [[Xorg]].
+
''xmodmap'' is a utility for modifying keymaps and pointer button mappings in [[Xorg]].
 +
 
 +
''xmodmap'' is not directly related to [[X KeyBoard extension]] (XKB), as it uses different (pre-XKB) ideas on how ''keycodes'' are processed within X. Generally, it is only recommended for the simplest tasks. See [[X KeyBoard extension]] for advanced layout configuration.
 +
 
 +
{{Note|''xmodmap'' settings are reset by ''setxkbmap'', which not only alters the alphanumeric keys to the values given in the map, but also resets all other keys to the startup default. [http://wiki.linuxquestions.org/wiki/Configuring_keyboards]}}
  
 
== Introduction ==  
 
== Introduction ==  
The Linux kernel generates a code each time a key is pressed on a keyboard. That code is compared to a {{ic|table of keycodes}} defining a figure that is then displayed.
 
  
This process is complicated by [[Xorg]], which starts its own table of keycodes. Each keycode can belong to a {{ic|keysym}}. A keysym is like a function, started by typing a key. Xmodmap allows you to edit these keycode-keysym relations.
+
There are two types of keyboard values in [[Xorg]]: ''keycodes'' and ''keysyms''.
 +
 
 +
; keycode  
 +
: The ''keycode'' is the numeric representation received by the kernel when a key or a mouse button is pressed.
 +
; keysym
 +
: The ''keysym'' is the value assigned to the ''keycode''. For example, pressing {{ic|A}} generates the {{ic|keycode 73}}, which is mapped to the {{ic|keysym 0×61}}, which matches {{ic|A}} in the [[Wikipedia:ASCII|ASCII table]].
 +
: The ''keysyms'' are managed by [[Xorg]] in a table of ''keycodes'' defining the ''keycode''-''keysym'' relations, which is called the [[#Keymap table|keymap table]]. This can be shown by running {{ic|xmodmap}}.
 +
 
 +
== Installation ==
 +
 
 +
''xmodmap'' can be [[pacman|installed]] through the {{Pkg|xorg-xmodmap}} package from the [[official repositories]].
 +
 
 +
Optionally, install {{Pkg|xkeycaps}}, which is a graphical front-end to ''xmodmap''.
  
 
== Keymap table ==
 
== Keymap table ==
 +
 
Print the current keymap table formatted into expressions:
 
Print the current keymap table formatted into expressions:
{{hc|$ xmodmap -pke|2=keycode  57 = n N}}
 
  
Each keymap is followed by the {{Ic|keysyms}} it is mapped to. The above example indicates that the keycode {{ic|57}} is mapped to the lowercase ''n'', while the uppercase ''N'' is mapped to keycode {{Ic|57}} and {{Ic|Shift}}.
+
{{hc|$ xmodmap -pke|2=
 +
[...]
 +
keycode 57 = n N
 +
[...]
 +
}}
  
Each keysym column in the table corresponds to a particular key combination:
+
Each ''keycode'' is followed by the ''keysym'' it is mapped to. The above example indicates that the ''keycode'' {{ic|57}} is mapped to the lowercase {{ic|n}}, while the uppercase {{ic|N}} is mapped to ''keycode'' {{ic|57}} plus {{ic|Shift}}.
# {{Keypress|Key}}
+
# {{Keypress|Shift+Key}}
+
# {{Keypress|mode_switch+Key}}
+
# {{Keypress|mode_switch+Shift+Key}}
+
# {{Keypress|AltGr+Key}}
+
# {{Keypress|AltGr+Shift+Key}}
+
  
Not all keysyms have to be set, but if you want to assign a latter keysym without assigning earlier ones set them to {{ic|NoSymbol}}.
+
Each ''keysym'' column in the table corresponds to a particular combination of modifier keys:
 +
# {{ic|Key}}
 +
# {{ic|Shift+Key}}
 +
# {{ic|mode_switch+Key}}
 +
# {{ic|mode_switch+Shift+Key}}
 +
# {{ic|AltGr+Key}}
 +
# {{ic|AltGr+Shift+Key}}
  
You can check which keymap corresponds to a key on your keyboard with [[Extra Keyboard Keys#Using xev|xev]].
+
Not all ''keysyms'' have to be set, but to assign only a latter ''keysym'', use the {{ic|NoSymbol}} value.
  
{{tip|There are predefined descriptive keycodes that make mapping additional keys easier (e.g. {{ic|XF86AudioMute}}, {{ic|XF86Mail}}). Those keycodes can be found in: {{ic|/usr/include/X11/XF86keysym.h}}}}
+
To see which ''keycode'' corresponds to a key, see [[Extra keyboard keys#In Xorg]] for details on the ''xev'' utility which will output relevant keycode/keysym information about a key when you press it.
 +
 
 +
{{Tip|There are predefined descriptive ''keysyms'' for multimedia keys, e.g. {{ic|XF86AudioMute}} or {{ic|XF86Mail}}. These ''keysyms'' can be found in {{ic|/usr/include/X11/XF86keysym.h}}. Many multimedia programs are designed to work with these ''keysyms'' out-of-the-box, without the need to configure any third-party application.
 +
}}
 +
 
 +
Note that xmodmap is influenced by xkbd settings, so all eight keysym are available for the us(intl) xkbd layout but not for the default us (it is missing the ralt_switch symbol defined in level3). To have all 8 keysyms available you should configure the ''(intl)'' variant of the keyboard from xorg.conf or add, using us layout as an example, {{ic|setxkbmap -layout 'us(intl)'}} before calling xmodmap.
  
 
== Custom table ==
 
== Custom table ==
You can create your own map and store it in your home directory (i.e. {{ic|~/.Xmodmap}}). Print the current keymap table into a configuration file:
 
xmodmap -pke > ~/.Xmodmap
 
  
Make the desired changes to {{ic|~/.Xmodmap}} and then test the new configuration with:
+
To create a key map (i.e. {{ic|~/.Xmodmap}}):
  xmodmap ~/.Xmodmap
+
$ xmodmap -pke > ~/.Xmodmap
 +
 
 +
To test the changes:
 +
  $ xmodmap ~/.Xmodmap
 +
 
 +
=== Activating the custom table ===
 +
 
 +
With [[GDM]], [[XDM]], [[KDM]] or [[LightDM]] there is no need to source {{ic|~/.Xmodmap}}. For [[startx]], use:
  
To activate your custom table when starting Xorg add the following:
 
 
{{hc|~/.xinitrc|
 
{{hc|~/.xinitrc|
if [ -f $HOME/.Xmodmap ]; then
+
if [ -s ~/.Xmodmap ]; then
     /usr/bin/xmodmap $HOME/.Xmodmap
+
     xmodmap ~/.Xmodmap
 
fi}}
 
fi}}
  
Line 54: Line 86:
  
 
=== Test changes ===
 
=== Test changes ===
You can also make temporary changes for the current session. For example:
 
xmodmap -e "keycode  46 = l L l L lstroke Lstroke lstroke"
 
xmodmap -e "keysym a = e E"
 
  
== Special keys/signals ==
+
To make temporary changes:
 +
$ xmodmap -e "keycode  46 = l L l L lstroke Lstroke lstroke"
 +
$ xmodmap -e "keysym a = e E"
 +
 
 +
== Modifier keys ==
 +
 
 +
''xmodmap'' can also be used to override [[Wikipedia:Modifier key|modifier keys]], e.g. to swap {{ic|Control}} and {{ic|Super}} (the [[Wikipedia:Windows key|Windows keys]]).
 +
 
 +
Before assignment the modifier keys need to be empty. {{ic|!}} is a comment, so only the modifiers {{ic|Control}} and {{ic|Mod4}} get cleared in the following example. Then the ''keysyms'' {{ic|Control_L}}, {{ic|Control_R}}, {{ic|Super_L}} and {{ic|Super_R}} are assigned to the opposite modifier. Assigning both left and right to the same modifier means that both keys are treated the same way.
 +
 
 +
{{hc|~/.Xmodmap|2=
 +
[...]
 +
!clear Shift
 +
!clear Lock
 +
clear Control
 +
!clear Mod1
 +
!clear Mod2
 +
!clear Mod3
 +
clear Mod4
 +
!clear Mod5
 +
!add Shift  = Shift_L Shift_R
 +
!add Lock    = Caps_Lock
 +
add Control = Super_L Super_R
 +
!add Mod1    = Alt_L Alt_R
 +
!add Mod2    = Mode_switch
 +
!add Mod3    =
 +
add Mod4    = Control_L Control_R
 +
!add Mod5    =
 +
}}
 +
 
 +
{{Note|The example assumes that the {{ic|Control_L}} and {{ic|Control_R}} keysyms were assigned to the {{ic|Control}} modifier, and {{ic|Super_L}} and {{ic|Super_R}} keysyms to the {{ic|Mod4}} modifier. If you get the following error message {{ic|X Error of failed request:  BadValue (integer parameter out of range for operation)}}, you will need to adapt accordingly. Running {{ic|xmodmap}} produces a list of modifiers and keys that are assigned to them.}}
 +
 
 +
The following example modifies {{ic|CapsLock}} to {{ic|Control}}, and {{ic|Shift+CapsLock}} to {{ic|CapsLock}}:
 +
{{hc|~/.Xmodmap|2=
 +
clear lock
 +
clear control
 +
add control = Caps_Lock Control_L Control_R
 +
keycode 66 = Control_L Caps_Lock NoSymbol NoSymbol
 +
}}
 +
 
 +
== Reverse scrolling ==
 +
 
 +
{{Merge|Mouse buttons|xmodmap is not the only way to do this.}}
 +
 
 +
The [http://who-t.blogspot.com/2011/09/natural-scrolling-in-synaptics-driver.html natural scrolling] feature available in OS X Lion (mimicking smartphone or tablet scrolling) can be [https://bbs.archlinux.org/viewtopic.php?id=126258 replicated] with ''xmodmap''. Since the synaptics driver uses the buttons 4/5/6/7 for up/down/left/right scrolling, you simply need to swap the order of how the buttons are declared in {{ic|~/.Xmodmap}}:
 +
 
 +
{{hc|~/.Xmodmap|2=
 +
pointer = 1 2 3 '''5 4''' 7 6 8 9 10 11 12
 +
}}
 +
 
 +
Then update ''xmodmap'':
 +
$ xmodmap ~/.Xmodmap
 +
 
 +
== Swapping mouse buttons ==
 +
 
 +
{{Merge|Mouse buttons|xmodmap is not the only way to do this.}}
 +
 
 +
The left, middle and right mouse buttons correspond to buttons 1,2 and 3 respectively in the synaptics driver. To swap left and right mouse buttons, again simply reverse the order in which they are listed in your {{ic|~/.Xmodmap}}:
 +
 
 +
{{hc|~/.Xmodmap|2=
 +
pointer = '''3 2 1'''
 +
}}
 +
 
 +
This should suffice for a simple mouse setup. Again, update ''xmodmap'':
 +
$ xmodmap ~/.Xmodmap
 +
 
 +
== Templates ==
 +
 
 +
=== Spanish ===
 +
 
 +
{{hc|~/.Xmodmap|
 +
keycode  24 = a A aacute Aacute ae AE ae
 +
keycode  26 = e E eacute Eacute EuroSign cent EuroSign
 +
keycode  30 = u U uacute Uacute downarrow uparrow downarrow
 +
keycode  31 = i I iacute Iacute rightarrow idotless rightarrow
 +
keycode  32 = o O oacute Oacute oslash Oslash oslash
 +
keycode  57 = n N ntilde Ntilde n N n
 +
keycode  58 = comma question comma questiondown dead_acute dead_doubleacute dead_acute
 +
keycode  61 = exclam section exclamdown section dead_belowdot dead_abovedot dead_belowdot
 +
!Maps the Mode key to the Alt key
 +
keycode 64 = Mode_switch
 +
}}
  
You can also also edit the keys: {{Keypress|Shift}}, {{Keypress|Ctrl}}, {{Keypress|Alt}} and {{Keypress|Super}} (there always exists a left and a right one (Alt_R=AltGr))
+
=== Turn CapsLock into Control, and LeftControl into Hyper ===
  
At first you have to delete/clear the signals that should be edited. In the beginning of your {{ic|~/.Xmodmap}}:
+
Laptop users may prefer having {{ic|CapsLock}} as {{ic|Control}}. The {{ic|Left Hyper}} key can be used as a modifier.
!clear Shift
+
!clear Lock
+
clear Control
+
!clear Mod1
+
!clear Mod2
+
!clear Mod3
+
clear Mod4
+
!clear Mod5
+
keycode  8 =
+
...
+
Remember, {{ic|!}} is a comment so only {{Keypress|Control}} and {{Keypress|Mod4}} (Standard: Super_L Super_R) get cleared.
+
  
Write the new signals at the end of {{ic|~/.Xmodmap}}
+
{{hc|~/.Xmodmap|<nowiki>
keycode 255 =
+
clear      lock
!add Shift   = Shift_L Shift_R
+
clear   control
!add Lock    = Caps_Lock
+
clear      mod1
add Control = Super_L Super_R
+
clear      mod2
!add Mod1    = Alt_L Alt_R
+
clear      mod3
!add Mod2    = Mode_switch
+
clear      mod4
!add Mod3    =
+
clear      mod5
add Mod4    = Control_L Control_R
+
keycode      37 = Hyper_L
!add Mod5    =
+
keycode      66 = Control_L
The {{Keypress|Super}} keys have now been exchanged with the {{Keypress|Ctrl}} keys.
+
add     control = Control_L Control_R
 +
add       mod1 = Alt_L Alt_R Meta_L
 +
add       mod2 = Num_Lock
 +
add       mod3 = Hyper_L
 +
add       mod4 = Super_L Super_R
 +
add       mod5 = Mode_switch ISO_Level3_Shift
 +
</nowiki>}}
  
== Reverse Scrolling ==
+
=== Switch every number key N with Shift-N and vice-versa, for Croatian layout ===
The natural scrolling feature available in OS X Lion can be mimicked with xmodmap. Since the synaptics driver uses the buttons 4/5/6/7 for up/down/left/right scrolling, you simply need to swap the order of how the buttons are declared in {{ic|~/.Xmodmap}}.
+
  
Open {{ic|~/.Xmodmap}} and append the following line to the file:
+
Should work fine for layouts similar to Croatian as well.
pointer = 1 2 3 5 4 7 6 8 9 10 11 12
+
Note how the 4 and 5 have been reversed.
+
  
Then update xmodmap:
+
{{hc|~/.Xmodmap|<nowiki>
xmodmap ~/.Xmodmap
+
keycode 10 = exclam 1 1 exclam asciitilde dead_tilde asciitilde
 +
keycode 11 = quotedbl 2 2 quotedbl dead_caron caron dead_caron
 +
keycode 12 = numbersign 3 3 numbersign asciicircum dead_circumflex asciicircum
 +
keycode 13 = dollar 4 4 dollar dead_breve breve dead_breve
 +
keycode 14 = percent 5 5 percent degree dead_abovering degree
 +
keycode 15 = ampersand 6 6 ampersand dead_ogonek ogonek dead_ogonek
 +
keycode 16 = slash 7 7 slash grave dead_grave grave
 +
keycode 17 = parenleft 8 8 parenleft dead_abovedot abovedot dead_abovedot
 +
keycode 18 = parenright 9 9 parenright dead_acute apostrophe dead_acute
 +
keycode 19 = equal 0 0 equal dead_doubleacute doubleacute dead_doubleacute
 +
</nowiki>}}
  
To return to regular scrolling simply reverse the order of the 4 and 5 or delete the line altogether. For more information check Peter Hutterer's post, [http://who-t.blogspot.com/2011/09/natural-scrolling-in-synaptics-driver.html Natural scrolling in the synaptics driver], or the [https://bbs.archlinux.org/viewtopic.php?id=126258 Reverse scrolling direction ala Mac OS X Lion?] forum thread.
+
== See also ==
  
== Additional resources ==
 
 
*[http://www.x.org/archive/current/doc/man/man1/xmodmap.1.xhtml Current man page] at X.Org Foundation
 
*[http://www.x.org/archive/current/doc/man/man1/xmodmap.1.xhtml Current man page] at X.Org Foundation
 
*[http://cweiske.de/howto/xmodmap/allinone.html Multimediakeys with .Xmodmap HOWTO] by Christian Weiske
 
*[http://cweiske.de/howto/xmodmap/allinone.html Multimediakeys with .Xmodmap HOWTO] by Christian Weiske
 
*[http://dev-loki.blogspot.com/2006/04/mapping-unsupported-keys-with-xmodmap.html Mapping unsupported keys with xmodmap] by Pascal Bleser
 
*[http://dev-loki.blogspot.com/2006/04/mapping-unsupported-keys-with-xmodmap.html Mapping unsupported keys with xmodmap] by Pascal Bleser
*[http://en.gentoo-wiki.com/wiki/Multimedia_Keys Multimedia Keys article] on the [http://en.gentoo-wiki.com/ Gentoo Wiki]
 
*[http://keytouch.sourceforge.net/howto_keyboard/node4.html How to retrieve scancodes] by Marvin Raaijmakers
 
 
*[http://wiki.linuxquestions.org/wiki/List_of_Keysyms_Recognised_by_Xmodmap List of Keysyms Recognised by Xmodmap] on [http://linuxquestions.org LinuxQuestions]
 
*[http://wiki.linuxquestions.org/wiki/List_of_Keysyms_Recognised_by_Xmodmap List of Keysyms Recognised by Xmodmap] on [http://linuxquestions.org LinuxQuestions]

Latest revision as of 17:20, 13 June 2016

xmodmap is a utility for modifying keymaps and pointer button mappings in Xorg.

xmodmap is not directly related to X KeyBoard extension (XKB), as it uses different (pre-XKB) ideas on how keycodes are processed within X. Generally, it is only recommended for the simplest tasks. See X KeyBoard extension for advanced layout configuration.

Note: xmodmap settings are reset by setxkbmap, which not only alters the alphanumeric keys to the values given in the map, but also resets all other keys to the startup default. [1]

Introduction

There are two types of keyboard values in Xorg: keycodes and keysyms.

keycode
The keycode is the numeric representation received by the kernel when a key or a mouse button is pressed.
keysym
The keysym is the value assigned to the keycode. For example, pressing A generates the keycode 73, which is mapped to the keysym 0×61, which matches A in the ASCII table.
The keysyms are managed by Xorg in a table of keycodes defining the keycode-keysym relations, which is called the keymap table. This can be shown by running xmodmap.

Installation

xmodmap can be installed through the xorg-xmodmap package from the official repositories.

Optionally, install xkeycaps, which is a graphical front-end to xmodmap.

Keymap table

Print the current keymap table formatted into expressions:

$ xmodmap -pke
[...]
keycode  57 = n N
[...]

Each keycode is followed by the keysym it is mapped to. The above example indicates that the keycode 57 is mapped to the lowercase n, while the uppercase N is mapped to keycode 57 plus Shift.

Each keysym column in the table corresponds to a particular combination of modifier keys:

  1. Key
  2. Shift+Key
  3. mode_switch+Key
  4. mode_switch+Shift+Key
  5. AltGr+Key
  6. AltGr+Shift+Key

Not all keysyms have to be set, but to assign only a latter keysym, use the NoSymbol value.

To see which keycode corresponds to a key, see Extra keyboard keys#In Xorg for details on the xev utility which will output relevant keycode/keysym information about a key when you press it.

Tip: There are predefined descriptive keysyms for multimedia keys, e.g. XF86AudioMute or XF86Mail. These keysyms can be found in /usr/include/X11/XF86keysym.h. Many multimedia programs are designed to work with these keysyms out-of-the-box, without the need to configure any third-party application.

Note that xmodmap is influenced by xkbd settings, so all eight keysym are available for the us(intl) xkbd layout but not for the default us (it is missing the ralt_switch symbol defined in level3). To have all 8 keysyms available you should configure the (intl) variant of the keyboard from xorg.conf or add, using us layout as an example, setxkbmap -layout 'us(intl)' before calling xmodmap.

Custom table

To create a key map (i.e. ~/.Xmodmap):

$ xmodmap -pke > ~/.Xmodmap

To test the changes:

$ xmodmap ~/.Xmodmap

Activating the custom table

With GDM, XDM, KDM or LightDM there is no need to source ~/.Xmodmap. For startx, use:

~/.xinitrc
if [ -s ~/.Xmodmap ]; then
    xmodmap ~/.Xmodmap
fi

Alternatively, edit the global startup script /etc/X11/xinit/xinitrc.

Test changes

To make temporary changes:

$ xmodmap -e "keycode  46 = l L l L lstroke Lstroke lstroke"
$ xmodmap -e "keysym a = e E"

Modifier keys

xmodmap can also be used to override modifier keys, e.g. to swap Control and Super (the Windows keys).

Before assignment the modifier keys need to be empty. ! is a comment, so only the modifiers Control and Mod4 get cleared in the following example. Then the keysyms Control_L, Control_R, Super_L and Super_R are assigned to the opposite modifier. Assigning both left and right to the same modifier means that both keys are treated the same way.

~/.Xmodmap
[...]
!clear Shift
!clear Lock
clear Control
!clear Mod1
!clear Mod2
!clear Mod3
clear Mod4
!clear Mod5
!add Shift   = Shift_L Shift_R
!add Lock    = Caps_Lock
add Control = Super_L Super_R
!add Mod1    = Alt_L Alt_R
!add Mod2    = Mode_switch
!add Mod3    =
add Mod4    = Control_L Control_R
!add Mod5    =
Note: The example assumes that the Control_L and Control_R keysyms were assigned to the Control modifier, and Super_L and Super_R keysyms to the Mod4 modifier. If you get the following error message X Error of failed request: BadValue (integer parameter out of range for operation), you will need to adapt accordingly. Running xmodmap produces a list of modifiers and keys that are assigned to them.

The following example modifies CapsLock to Control, and Shift+CapsLock to CapsLock:

~/.Xmodmap
clear lock
clear control
add control = Caps_Lock Control_L Control_R
keycode 66 = Control_L Caps_Lock NoSymbol NoSymbol

Reverse scrolling

Merge-arrows-2.pngThis article or section is a candidate for merging with Mouse buttons.Merge-arrows-2.png

Notes: xmodmap is not the only way to do this. (Discuss in Talk:Xmodmap#)

The natural scrolling feature available in OS X Lion (mimicking smartphone or tablet scrolling) can be replicated with xmodmap. Since the synaptics driver uses the buttons 4/5/6/7 for up/down/left/right scrolling, you simply need to swap the order of how the buttons are declared in ~/.Xmodmap:

~/.Xmodmap
pointer = 1 2 3 5 4 7 6 8 9 10 11 12

Then update xmodmap:

$ xmodmap ~/.Xmodmap

Swapping mouse buttons

Merge-arrows-2.pngThis article or section is a candidate for merging with Mouse buttons.Merge-arrows-2.png

Notes: xmodmap is not the only way to do this. (Discuss in Talk:Xmodmap#)

The left, middle and right mouse buttons correspond to buttons 1,2 and 3 respectively in the synaptics driver. To swap left and right mouse buttons, again simply reverse the order in which they are listed in your ~/.Xmodmap:

~/.Xmodmap
pointer = 3 2 1

This should suffice for a simple mouse setup. Again, update xmodmap:

$ xmodmap ~/.Xmodmap

Templates

Spanish

~/.Xmodmap
keycode  24 = a A aacute Aacute ae AE ae
keycode  26 = e E eacute Eacute EuroSign cent EuroSign
keycode  30 = u U uacute Uacute downarrow uparrow downarrow
keycode  31 = i I iacute Iacute rightarrow idotless rightarrow
keycode  32 = o O oacute Oacute oslash Oslash oslash
keycode  57 = n N ntilde Ntilde n N n
keycode  58 = comma question comma questiondown dead_acute dead_doubleacute dead_acute
keycode  61 = exclam section exclamdown section dead_belowdot dead_abovedot dead_belowdot
!Maps the Mode key to the Alt key
keycode 64 = Mode_switch

Turn CapsLock into Control, and LeftControl into Hyper

Laptop users may prefer having CapsLock as Control. The Left Hyper key can be used as a modifier.

~/.Xmodmap
clear      lock 
clear   control
clear      mod1
clear      mod2
clear      mod3
clear      mod4
clear      mod5
keycode      37 = Hyper_L
keycode      66 = Control_L
add     control = Control_L Control_R
add        mod1 = Alt_L Alt_R Meta_L
add        mod2 = Num_Lock
add        mod3 = Hyper_L
add        mod4 = Super_L Super_R
add        mod5 = Mode_switch ISO_Level3_Shift

Switch every number key N with Shift-N and vice-versa, for Croatian layout

Should work fine for layouts similar to Croatian as well.

~/.Xmodmap
keycode 10 = exclam 1 1 exclam asciitilde dead_tilde asciitilde
keycode 11 = quotedbl 2 2 quotedbl dead_caron caron dead_caron
keycode 12 = numbersign 3 3 numbersign asciicircum dead_circumflex asciicircum
keycode 13 = dollar 4 4 dollar dead_breve breve dead_breve
keycode 14 = percent 5 5 percent degree dead_abovering degree
keycode 15 = ampersand 6 6 ampersand dead_ogonek ogonek dead_ogonek
keycode 16 = slash 7 7 slash grave dead_grave grave
keycode 17 = parenleft 8 8 parenleft dead_abovedot abovedot dead_abovedot
keycode 18 = parenright 9 9 parenright dead_acute apostrophe dead_acute
keycode 19 = equal 0 0 equal dead_doubleacute doubleacute dead_doubleacute

See also