How do I *un*set an option in `xkbmap`? I would like to disable the Ctrl-Alt-Backspace combination using a command line tool, without root priviliges. I know I can use `setxkbmap` to _en_ able “zapping” with the option `terminate:ctrl_alt_bksp`. Further, `setxkbmap -option` [naming no option] removes _all_ options. Is there a way to unset only one option?

A little bit crutched: remove all options using `-option` with an empty argument first, then set same options with _terminate_ excluded from the list:


setxkbmap -option -option $(setxkbmap -query |
sed -n 's/options:\s*\(terminate:[^:]*,\)\?\|,terminate:[^,]*//gp')