centos6.5下oracle自动备份删除指定天数的文件

#!/bin/sh
export ORACLE_BASE=/home/oracle/app
export ORACLE_HOME=$ORACLE_BASE/oracle/product/11.2.0/dbhome_1
export ORACLE_SID=orcl
export LD_LIBRARY_PATH=$ORACLE_HOME/bin:$PATH:$HOME/bin
//注意是冒号
rq=`date ‘+%Y%M%D%H%M‘`
/home/oracle/app/oracle/product/11.2.0/dbhome_1/bin/exp oracle/oracle@orcl12 owner=oracle file=/home/oracle/backup/oracleBack_$rq.dmp log=/home/oracle/backup/oracleBack_$rq.log
//压缩文件名
ordatabak=oracleBack_$rq.tar.gz
dmpbak=oracleBack_$rq.dmp
logbak=oracleBack_$rq.log
days=7
cd /home/oracle/backup
tar -zcvf  $ordatabak  $dmpbak $logbak
find "/home/oracle/backup" -type f -name "*.dmp" -exec rm {} \;
find "/home/oracle/backup" -type f -name "*.log" -exec rm {} \;
find "/home/oracle/backup" -type f -name "*.tar.gz" -mtime +$days  -exec  rm -rf {} \;

//这里需要注意 {} \;之间有空格   -mtime +$days之间有空格