以前公司使用的em备份，来着家公司之后，客户的1158端口不对外开放，要求用rman备份，于是写这个自动备份脚本；
#!/bin/bash
# chkconfig: 345 99 10
# description: script for the SMS MESSAGE OR Oracle Instance, Listener
#Choose to run the script by week
#The script will automatically choose the backup level
#software make : muxinqing
time=$(date +%A)
ora=$(ps aux | grep ora | grep -v "grep" |  wc -l)


case $time in


'Monday')


#cmdfile=/backup/script/backup_0_level
if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log" <<m
run
{allocate channel orademo type disk;
backup incremental level 0  as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;
'Tuesday')


if [ $ora -ne 0  ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 2 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;
'Wednesday')


if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 1 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;


'Thursday')




if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 2 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;


'Friday')


if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 2 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;


'Saturday')
if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 2 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"
fi
;;


'Sunday')


if [ $ora -ne 0 ]; then
su - oracle -c "rman target / msglog=/app/backup/rman.log"  << m
run
{allocate channel orademo type disk;
backup incremental level 2 cumulative as compressed backupset database include current controlfile format '/app/backup/db_%s_%p_%t' plus archivelog format  '/app/backup/arch_%s_%p_%t' delete input;
crosscheck backup;
delete expired backup;
Delete noprompt obsolete;
}
m
else
echo "file not exist"


fi


esac

执行一个定时任务就完成自动备份了