set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
+[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
+
x="$(readlink -f "$BASH_SOURCE")"; cd ${x%/*}
usage() {
#/a/opt/openwrt/source/bin/packages/mips_24kc/mypackages/relay_1.0-1_mips_24kc.ipk \
-sudo scp /q/root/shadow/router /p/c/machine_specific/wrt/etc/dropbear/dropbear_rsa_host_key \
+scp /q/root/shadow/router /p/c/machine_specific/wrt/etc/dropbear/dropbear_rsa_host_key \
/p/router-secrets /p/c/machine_specific/wrt/etc/wg.{key,psk} $h:
scp ../openwrtkeyring/usign/* $h:/etc/opkg/keys