帮忙帮忙拉~谢谢关于oracle备份的

maoyi_love_bibi

我的shell文件
ORACLE_HOME=/export/home/oracle/OraHome1
ORACLE_SID=jw
NLS_LANG="simplified chinese"_china.zhs16gbk
PATH=$PATH:/usr/sbin:/$ORACLE_HOME/bin
export ORACLE_HOME ORACLE_SID NLS_LANG  PATH
DATE=`date +%Y%m%d`
cd /export/home/oracle
exp jw/jw  file=JW${DATE}.dmp log=JW${DATE}.log

我的crontab 文件
53 14 * * * /opt/oracle/backup/shellback

但是报错！
Message 3:
From oracle@localhost.localdomain  Sun Sep 19 14:53:00 2004
Date: Sun, 19 Sep 2004 14:53:00 +0800
From: root@localhost.localdomain (Cron Daemon)
To: oracle@localhost.localdomain
Subject: Cron <oracle@localhost>; /opt/oracle/backup/shellback
X-Cron-Env: <SHELL=/bin/sh>;
X-Cron-Env: <HOME=/opt/oracle>;
X-Cron-Env: <ATH=/usr/bin:/bin>;
X-Cron-Env: <LOGNAME=oracle>;

/opt/oracle/backup/shellback: line 3: exp: command not found


linux 9.0
oracle 9.2
救命啊~~~~~~~~~~~~~~~~~~~~~~