сам скрипт
root@posts:/home/test/rab# cat rout.txt
#! /bin/sh
### BEGIN INIT INFO
# Provides: defaultdaemon
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start daemon at boot time
# Description: Enable service provided by daemon.
### END INIT INFO
#маршрут к 192.168.3.15
route add -net 192.168.3.0/24 dev eth0
root@posts:/home/test/rab# update-rc.d rout.txt defaults
update-rc.d: using dependency based boot sequencing
update-rc.d: error: unable to read /etc/init.d/rout.txt