刪除/disk1_cx300/archlog/ 下超過7的以.dbf結尾的文件
find /disk1_cx300/archlog/ -mtime +7 -name "*.dbf"  -exec rm {} \;

刪除在/u01/oracle/oradata/bkdb/arch下比arch_1_2650.log更舊的文件(包括arch_1_2650.log)
find /u01/oracle/oradata/bkdb/arch -type f ! -newer arch_1_2650.log -exec rm {} \;

清除log
crontab -l oracle|grep  /apps/oracle/jobs/clear_ora_log.sh
0 * * * 6 /apps/oracle/jobs/clear_ora_log.sh ohub salary > /dev/null 2>&1
root@hrdb # cat /apps/oracle/jobs/clear_ora_log.sh
#!/bin/ksh
#clear oracle logs,include: 1).core dump; 2).udump; 3).network logs

if [ -z "$1" ]
then
   echo "Usage: check_alert_log.sh "
   exit 99
fi

loop=0
while [ $# -ne 0 ]
do
  #echo $1
  check=`cat /var/opt/oracle/oratab|grep -i "\<$1\>"|wc -l`
  tmp=`expr $check`      # Convert string to number
  if [ $tmp -lt 1 ]
  then
     echo
     echo "Not a valid ORACLE_SID.  Retry."
     echo
     exit 99
  fi

  ORACLE_SID=$1
  HOME=/apps/oracle
  ORACLE_HOME=`cat /var/opt/oracle/oratab|grep ^$ORACLE_SID:|cut -f2 -d':'`
  UDUMP_DEST=$HOME/admin/$ORACLE_SID/udump
  CDUMP_DEST=$HOME/admin/$ORACLE_SID/cdump
  export HOME ORACLE_SID ORACLE_HOME UDUMP_DEST

  #1.clear core dump
  cd $ORACLE_HOME/dbs
  rm -rf core_*
  cd $CDUMP_DEST
  rm -rf core_*

  #2). clear udump
  cd $UDUMP_DEST
  find . -name "*.trc" -ctime +3 -print|xargs rm -f

  #3). clear network log        
  cd $ORACLE_HOME/network/log
  >listener.log
  >sqlnet.log

  shift
done