#!/bin/sh
if [ "$(id -u)" -ne 0 ]
then
        exec sudo -- "$0" "$@"
fi
sedprog='/ penme host key @ [0-9]+\.[0-9].[0-9]+\.[0-9]+/ d'
FORREALS=-i~penme
sed ${FORREALS} -E -e "$sedprog"  /root/.ssh/authorized_keys