#!/bin/bash

case "$1" in
  114)
    DNS=114.114.114.114
    ;;
  google)
    DNS=8.8.8.8
    ;;
  *)
    DNS=$1
esac

sed -i "s|^\(server.*\)/[^/]*$|\1/$DNS|" /etc/dnsmasq.d/accelerated-domains.china.conf