#!/bin/sh CAPS_KEY=0x700000039 F10_KEY=0x700000043 DATA=$(printf '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":%s,"HIDKeyboardModifierMappingDst":%s}]}' $CAPS_KEY $F10_KEY) hidutil property --set $DATA echo "Successfully overwrote CAPS KEY to F10!"