A complete RMAN shell script backup for Oracle 8i, 9i, 10g, 11g

I have tried to write a complete RMAN backup shell script that will work regardless of most used oracle version as well as most used unix operating system. If you ask any type of modification in this RMAN script then you can contact me via email. In this script it is assumed that you are using recovery catalog for you rman backup.

Following is the script.

#!/bin/ksh

#set -x

# *************************************************************
# *                                                           *
# * NAME:    RMAN_LVL_0_BKUP                                  *
# * VERSION: 1.01                                             *
# * AUTHOR:  Mohammad Abdul Momin Arju                        *
# * URL: http://arjudba.blogspot.com                          *  
# * SCRIPT:  Perform RMAN level 0 backup                      *
# *************************************************************
# * PSEUDO CODE                                               *
# *                                                           *
# * VALIDATE ALL PARAMETERS                                   *
# * INITIALISE ALL VARIABLES                                  *
# * DETERMINE IF ORACLE INSTANCE STARTED                      *
# * EXECUTE ACTIONS                                           *
# * CHECK LOGFILE FOR ORACLE ERROR MESSAGES                   *
# * EXIT SETTING RETURN CODE                                  *
# * In this script RMAN username and connection string is     * 
# * hardcoded. Password is extracted from an OS file due to   * 
# * security reason. You can hardcode it if you want.         *
# *************************************************************
# * Usage syntax                                              *
# *                                                           *
# * rman_lvl_0_bkup $ORACLE_SID                               *
# *************************************************************

SCRIPTNAME=rman_lvl_0_bkup

START_DATE=`date +"%d-%b-%C%y%-H%M%S"`
export PATH=/usr/bin:$PATH

if [ $# -eq 1 ] ; then

 ORACLE_SID=${1}
else
 echo $0 FAILED INVALID PARAMETERS.
 echo usage: ${SCRIPTNAME} oracle-instance-name
 echo
 exit 1
fi

#
# INITIALIZE THE ORACLE ENVIRONMENT
#
export ORACLE_SID
export ORATAB=/etc/oratab
export ORACLE_HOME=`awk -F: "/^${ORACLE_SID}:/ {print \\$2; exit}" $ORATAB  2>/dev/null`
export PATH=$ORACLE_HOME/bin:$PATH

#
# INITIALIZE ALL VARIABLES
#
NULFILE=/dev/null

TEMPDIR=/tmp
TEMPFILE=$TEMPDIR/${SCRIPTNAME}_$$.lst
TEMPFILE1=$TEMPDIR/${SCRIPTNAME}_$$.lst1
TEMPFILE2=$TEMPDIR/${SCRIPTNAME}_$$.lst2

RMAN_CONN_STR=BDDIP
RMAN_USERID=catdba

RMAN_PASSWD=`cat /u01/app/oracle/.dbadpwd | grep DB_CAT_DBA| awk '{print substr($2,12)}'`

LOGDIR=/backup/${ORACLE_SID}/logs
LOGFILE=$LOGDIR/${SCRIPTNAME}_$$.log

BACKDIR=/backup/${ORACLE_SID}/rman
CTLDIR=/backup/${ORACLE_SID}/rman

#
# Set the oracle library path
#
HOST_OS=`uname`
if [[ $HOST_OS = 'Linux' ]]; then
 export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
elif [[ $HOST_OS = 'HP-UX' ]] ; then
 export SHLIB_PATH=$ORACLE_HOME/lib:$SHLIB_PATH
 export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
elif [[ $HOST_OS = 'AIX' ]] ; then
 export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
 export SHLIB_PATH=$ORACLE_HOME/lib:$SHLIB_PATH
fi


#
# Remove old log files and backup files
# Make sure that the controlfile autoback configuration is set to the following
# CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/backup/${ORACLE_SID}/rman/ora_cf%F';
#
find $LOGDIR -name "${SCRIPTNAME}*.log" -mtime +31 -exec /bin/rm -f {} \;
find $BACKDIR -name "${ORACLE_SID}*" -mtime +2 -exec /bin/rm -f {} \;
find $BACKDIR -name "ALO*" -mtime +2 -exec /bin/rm -f {} \;
find $CTLDIR -name "ora_cf*" -mtime +14 -exec /bin/rm -f {} \;

#
# DETERMINE IF ORACLE INSTANCE STARTED
#

SMON=ora_smon_${ORACLE_SID}

IC=`ps -ef | grep $SMON | grep -v "grep $SMON" | wc -l`

if [ $IC -ne 0 ]; then
 echo "Instance: ${ORACLE_SID} is Running! "

#
# EXECUTE BACKUP
#

STARTTIM=`date +"%a, %d %b %Y %H:%M:%S"`

echo >> $LOGFILE
echo INVOKING DATABASE BACKUP $STARTTIM. >> $LOGFILE
echo >> $LOGFILE

#
# Get Database Version and set the COMPRESSED variable value for 10g databases
#
$ORACLE_HOME/bin/sqlplus -s "/ as sysdba"<< EOF > $NULFILE
SET HEAD OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET TERM OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
SPOOL $TEMPFILE
SELECT SUBSTR(VERSION,1,INSTR(VERSION,'.',1)-1) FROM V\$INSTANCE;
SPOOL OFF
EXIT;
EOF
DB_VERSION=`cat $TEMPFILE`

/bin/rm -f $TEMPFILE


if [[ $DB_VERSION -eq '9' ]]; then
 echo 'This is a 9i database'
 COMPRESSED=""
elif [[ $DB_VERSION -eq '10' ]]; then
 echo 'This is a 10g database'
 COMPRESSED=' as compressed backupset '
elif [[ $DB_VERSION -eq '11' ]]; then
 echo 'This is a 11g database'
 COMPRESSED=' as compressed backupset '
elif [[ $DB_VERSION -eq '8' ]]; then
 echo 'This is a 8i database'
 COMPRESSED=""
else
 echo 'Cant get the db version'
fi


#
#Get the Database name to backup >> $LOGFILE
#

$ORACLE_HOME/bin/sqlplus -s "/ as sysdba"<< EOF > $NULFILE
SET HEAD OFF
SET TERM OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
SPOOL $TEMPFILE
SELECT NAME FROM V\$DATABASE;
SPOOL OFF
EXIT;
EOF
DBNAME=`cat $TEMPFILE`

#
# Remove the Temp file
#
/bin/rm -f $TEMPFILE

$ORACLE_HOME/bin/sqlplus -s $RMAN_USERID/$RMAN_PASSWD@$RMAN_CONN_STR<<EOF > $NULFILE
SET TIMING OFF
SET HEAD OFF
SET TERM OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
SPOOL $TEMPFILE
SELECT ltrim(rtrim(max(rbr.sequence#)))
FROM rc_backup_redolog rbr
WHERE rbr.db_name='$DBNAME'
AND rbr.status='A'
AND rbr.backup_type='L'
AND thread#=1;
SPOOL OFF
EXIT;
EOF
SEQ1=`cat $TEMPFILE`
echo SEQ1 is $SEQ1

#
# Remove the temp file
#
/bin/rm -f $TEMPFILE

#
#Get the thread count to check for RAC or Not >> $LOGFILE
#
$ORACLE_HOME/bin/sqlplus -s "/ as sysdba"<< EOF > $NULFILE
SET TIMING OFF
SET HEAD OFF
SET TERM OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
COLUMN REDO_CNT NEW_VALUE REDO_CNT FORMAT 9999999
SELECT count(*) REDO_CNT FROM V\$THREAD;
EXIT REDO_CNT;
EOF
THREAD_CNT=`echo $?`

echo Number of Redo Log threads is $THREAD_CNT >> $LOGFILE

if  [ $THREAD_CNT -eq 2 ]; then

echo >> $LOGFILE
echo THIS IS RAC DATABASE, GET THE ARCHIVE SEQENCE NUMBER FOR THREAD 2 >> $LOGFILE
echo >> $LOGFILE


#
#Get the next Sequence Number to backup >> $LOGFILE
#

#
#Get the next Sequence Number to backup >> $LOGFILE
#
$ORACLE_HOME/bin/sqlplus -s $RMAN_USERID/$RMAN_PASSWD@$RMAN_CONN_STR << EOF > $NULFILE
SET TIMING OFF
SET HEAD OFF
SET TERM OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
SPOOL $TEMPFILE
SELECT ltrim(rtrim(max(rbr.sequence#)))
FROM rc_backup_redolog rbr
WHERE rbr.db_name='$DBNAME'
AND rbr.status='A'
AND rbr.backup_type='L'
AND thread#=2;
SPOOL OFF
EXIT;
EOF
SEQ2=`cat $TEMPFILE`
echo SEQ2 is $SEQ2

fi

#
# Remove the temp file
#
/bin/rm -f $TEMPFILE

#############################################################################################################

#
# Check if the database is in archivelog mode
#
$ORACLE_HOME/bin/sqlplus -s "/ as sysdba"<< EOF > $NULFILE
SET HEAD OFF
SET TERM OFF
SET VERIFY OFF
SET FEEDBACK OFF
SET PAGESIZE 0
SET ECHO OFF
SET TRIMSPOOL ON
SPOOL $TEMPFILE
SELECT LOG_MODE FROM V\$DATABASE;
SPOOL OFF
EXIT;
EOF
ARCHMODE=`cat $TEMPFILE`

#
# Remove the Temp file
#
/bin/rm -f $TEMPFILE

#
# Execute RMAN backup only if the db is in Archivelog Mode
#
if [[ $ARCHMODE = ARCHIVELOG ]]; then
  echo "Database: ${ORACLE_SID} is in ARCHIVELOG Mode!" >> $LOGFILE
else
  echo "Database: ${ORACLE_SID} is not in ARCHIVELOG Mode!" >> $LOGFILE
  echo "Database: ${ORACLE_SID} is not in ARCHIVELOG Mode! "
  exit 1
fi

export set NLS_DATE_FORMAT='DD-MON-YYYY HH24:MI:SS'

#############################################################################################################
if [ $THREAD_CNT -eq 2 ]; then
$ORACLE_HOME/bin/rman target / <<EOF >> $LOGFILE
SET ECHO ON;
connect catalog $RMAN_USERID/$RMAN_PASSWD@$RMAN_CONN_STR
run {
allocate channel channel1 type disk format '$BACKDIR/%d_t%t_s%s_LVL_0';
backup $COMPRESSED
incremental level 0
FILESPERSET 5
tag ${DBNAME}_INC_LVL_0
(database);

}

EOF

RC=$?
else
$ORACLE_HOME/bin/rman target / <<EOF >> $LOGFILE
SET ECHO ON;
connect catalog $RMAN_USERID/$RMAN_PASSWD@$RMAN_CONN_STR
run {
allocate channel channel1 type disk format '$BACKDIR/%d_t%t_s%s_LVL_0';
backup $COMPRESSED
incremental level 0
FILESPERSET 5
tag ${DBNAME}_INC_LVL_0
(database);

backup $COMPRESSED
format '$BACKDIR/ALO_%d_%s_%t'
(archivelog from sequence=${SEQ1} thread=1 DELETE INPUT);

release channel channel1;
}

EOF

RC=$?
fi


#############################################################################################################

DB=`cat $LOGFILE | grep -i "connected to target database" | awk '{print $7}' | tr -d '()'`

ENDTIM=`date +"%H:%M:%S"`

echo >> $LOGFILE
echo BACKUP LEVEL 0 COMPLETE $ENDTIM. $DB. >> $LOGFILE
echo >> $LOGFILE

#
# SET RETURN CODE BASED ON LOG FILE CONTENTS.
#

SC=`cat $LOGFILE | grep -i "error message stack follows" | wc -l`

if [ $RC -eq 0 -a $SC -eq 0 ]; then
SHELLRC=0
else
echo $0 FAILED WITH AN ORACLE RECOVERY MANAGER ERROR. SYNOPSIS WRITEN TO STDOUT. EXIT WITH RC=1 >> $LOGFILE
echo >> $LOGFILE

echo ERROR MSG: $0 FAILED WITH AN ORACLE RECOVERY MANAGER ERROR ON HOST `hostname`
echo LOG FILE: $LOGFILE
echo RC: 1

SHELLRC=1
fi

#
# ORACLE NOT AVAILABLE EXIT SETTING APPROPRIATE RETURN CODE.
#
else
echo $0 FAILED ORACLE INSTANCE ${ORACLE_SID} NOT AVAILABLE. SYNOPSIS WRITEN TO STDOUT. EXIT WITH RC=1 > $LOGFILE
echo >> $LOGFILE

echo ERROR MSG: $0 FAILED ORACLE INSTANCE ${ORACLE_SID} NOT AVAILABLE ON HOST `hostname`
echo LOG FILE: $LOGFILE
echo RC: 1

SHELLRC=1
fi

#
# EXIT SETTING APPROPRIATE RETURN CODE
#

echo exit $SHELLRC >> $LOGFILE

exit $SHELLRC