about cron (newbie question)

[Peng Zhang]

Hi folks,

I don't know what is wrong with the cron on my computer. I am running
freebsd 4.8 stable. The /etc/crontab file in my computer is:

# /etc/crontab - root's crontab for FreeBSD
#
# $FreeBSD: src/etc/crontab,v 1.21.2.3 2000/12/08 10:56:07 obrien Exp $
#
SHELL=/bin/sh
PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin
HOME=/var/log
#
#minute hour    mday    month   wday    who     command
#
*/5     *       *       *       *       root    /usr/libexec/atrun
#
# rotate log files every hour, if necessary
0       *       *       *       *       root    newsyslog
#
# do daily/weekly/monthly maintenance
1       3       *       *       *       root    periodic daily
15      4       *       *       6       root    periodic weekly
30      5       1       *       *       root    periodic monthly
#
# time zone change adjustment for wall cmos clock,
# does nothing, if you have UTC cmos clock.
# See adjkerntz(8) for details.
1,31    0-5     *       *       *       root    adjkerntz -a

Then I typed command "crontab /etc/crontab". However I received the
following mail:

>From root at pzhang.harvard.edu Sat Aug  9 15:00:01 2003
Date: Sat, 9 Aug 2003 15:00:00 -0400 (EDT)
From: root at pzhang.harvard.edu (Cron Daemon)
To: root at pzhang.harvard.edu
Subject: Cron <root at pzhang> root        /usr/libexec/atrun
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>
root: not found

Can somebody tell me how to deal with it?

Thanks,
Peng