This file is indexed.

/usr/sbin/netfilter-persistent is in netfilter-persistent 1.0.4+nmu2.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh

# This file is part of netfilter-persistent
# Copyright (C) 2014 Jonathan Wiltshire
# 
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3
# of the License, or (at your option) any later version.

set -e

IAM=$(whoami)
PLUGINS=/usr/share/netfilter-persistent/plugins.d

if [ ${IAM} != "root" ]; then
    echo "You must be root to use this utility"
fi

# Source configuration
if [ -f "/etc/default/netfilter-persistent" ]; then
    . /etc/default/netfilter-persistent
fi

run_plugins () {
    if [ -d ${PLUGINS} ]; then
        run-parts -v -a ${1} ${PLUGINS}
    fi
}

case $1 in
start|save|flush)
    run_plugins ${1}
    ;;
reload|restart)
    run_plugins start
    ;;
stop)
    if [ ${FLUSH_ON_STOP} -gt 0 ]; then
        run_plugins flush
    else
        echo "Automatic flush disabled; use '${0} flush'"
        exit 1
    fi
    ;;
*)
    echo "Usage: ${0} (start|stop|restart|reload|flush|save)"
    ;;
esac


exit 0