Short bash script to create a JSON object from a sequence of key-value arguments

jsonkv

#!/usr/bin/env bash
case "$1" in
-h|--help)
  echo 'Usage: jsonkv [-h|--help] [--] KEY VALUE...' 1>&2
  exit 2
  ;;
--)
  shift
  ;;
esac

while [ $# -gt 0 ]; do
  jq -n --arg k "$1" --arg v "$2" '{ ($k): (try ($v | fromjson) catch $v) }'
  shift
  shift
done | jq -s add