#!/bin/bash set -eE -o pipefail trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR [[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@" # Usage: run when switching from an untrusted network like public wifi # to a trusted one. rm -f /etc/dnsmasq.d/untrusted-network.conf systemctl reload dnsmasq