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 enable 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?
How do I *un*set an option in `xkbmap`?
x11;keyboard shortcuts;xkb
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)