1.建立一个名为backup.sh的脚本文件

 

2.保存文件内容如下所示：（具体内容，请视自已情况而定)

 

#setup backup directory and backup file format
export backup_dir=/tmp
export expfile=newemos.`date '+%Y_%m_%d_%H_%M'`.dmp

find /oracle/backupdb/*.Z -mtime +7 -exec rm -f {} \;

#remove old files,keep 10 copys

exp cent/cent file=$backup_dir/$expfile compress=y log=n
compress $backup_dir/$expfile

 

3.将上面的backup.sh加入到crontab中(例如下面的例子)

1 2 * * *  su oracle "/home/oracle/backupdb.sh"