xkeyboard-config − XKB data description files
xkeyboard-config provides the description files for the X Keyboard Extension (XKB). The configuration options below are usually applied with setxkbmap(1).
Switching to another layout

Key to choose the 2nd level

Key to choose the 3rd level

Ctrl position

Use keyboard LED to show alternative layout

Use keyboard LED to indicate modifiers

Layout of numeric keypad

Numeric keypad Delete behavior

Caps Lock behavior

Alt and Win behavior

Position of Compose key

Compatibility options

Currency signs

Key to choose 5th level

Non-breaking space input

Japanese keyboard options

Korean Hangul/Hanja keys

Esperanto letters with superscripts

Old Solaris keycodes compatibility

Key sequence to kill the X server

/usr/share/X11/xkb/compat
/usr/share/X11/xkb/compiled
/usr/share/X11/xkb/geometry
/usr/share/X11/xkb/keycodes
/usr/share/X11/xkb/keymap
/usr/share/X11/xkb/rules
/usr/share/X11/xkb/semantics
/usr/share/X11/xkb/symbols
/usr/share/X11/xkb/types
setxkbmap(1)