oracle バックアップ（DBノンストップバージョン）

[oracle@cent5-64b-40 oracle_bkup]$ cat backup2.sh 
#!/bin/bash

dir=/mnt/mnt1/oracle_bkup

#logfile
logfile=${dir}/log.wlogswitch.txt

#oracle datafile dir
oradatadir=/opt/oracle/app/oradata/orcl

# delete 3-gen-old
if [ -d ${dir}/backup/3 ]
 then
 rm -rfv ${dir}/backup/3 > $logfile
fi

# move  2-gen-old > 3-gen-old
if [ -d ${dir}/backup/2 ]
 then
 mv  ${dir}/backup/2 ${dir}/backup/3 >> $logfile
fi

# move  1-gen-old > 2-gen-old
if [ -d ${dir}/backup/1 ]
 then
 mv  ${dir}/backup/1 ${dir}/backup/2 >> $logfile
fi


# current archive
mkdir ${dir}/backup/1 >> $logfile
mv ${dir}/archive ${dir}/backup/1 >> $logfile
mkdir ${dir}/archive


# log-switch (so as to sync with datafile,archive-logfile)
sqlplus / as sysdba << _EOF_ >> $logfile
alter system switch logfile;
alter database begin backup;
exit;
_EOF_


#cp files
cp -R ${oradatadir}/*.* ${dir}/backup/1 >> $logfile

# start db
sqlplus / as sysdba << _EOF_ >> $logfile
alter database end backup;
exit;
_EOF_

[oracle@cent5-64b-40 oracle_bkup]$