setxkbmap(1) on Linux
The text 14797500d1c1, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
set the keyboard using the X Keyboard Extension
Flags it lists
-
-I -
-compat -
-config -
-device -
-display -
-geometry -
-help -
-keycodes -
-keymap -
-layout -
-model -
-option -
-print -
-query -
-rules -
-symbols -
-synch -
-types -
-variant -
-version