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##    shell db_incremental_database_backup.sh  ##

##    author  zongziheng                  ##

##    date    2019.06.20                  ##

##    func The path and date are set as required ##

##      use meth    ./rmanbackup_lev_sjz.sh BACKUP_DEST ORACLE_HOME ORACLE_SID  ##

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#!/bin/ksh

export LANG=en_US

export NLS_LANG=AMERICAN_AMERICA.AL32UTF8

backtime=`date +"20%y%m%d%H%M%S"`

RMAN_BACKUP_DATA_DEST=$1

RMAN_LOG_FILE=${RMAN_BACKUP_DATA_DEST}/rmanback_lev_${backtime}.log

BACKUP_DATE=`date +%d`

TODAY=`date`

CURRENT_USER=`id|cut -d "(" -f2|cut -d ")" -f1`

echo "-----------------$TODAY-------------------">$RMAN_LOG_FILE

 

export ORACLE_HOME=$2 

export RMAN=${ORACLE_HOME}/bin/rman

export ORACLE_SID=$3 

export ORACLE_USER=oracle

 

echo "ORACLE_SID: $ORACLE_SID">>$RMAN_LOG_FILE

echo "ORACLE_HOME:$ORACLE_HOME">>$RMAN_LOG_FILE

echo "ORACLE_USER:$ORACLE_USER">>$RMAN_LOG_FILE

echo "==========================================">>$RMAN_LOG_FILE

echo "BACKUP DATABASE BEGIN......">>$RMAN_LOG_FILE

echo "                   ">>$RMAN_LOG_FILE

 

#touch $RMAN_LOG_FILE

chmod 666 $RMAN_LOG_FILE

 

CURRENT_WEEK_DAILY=`date +%a`

 

case  "$CURRENT_WEEK_DAILY" in

       "Mon")

            BAK_LEVEL=1

            ;;

       "Tue")

            BAK_LEVEL=1

            ;;

       "Wed")

            BAK_LEVEL=1

            ;;

       "Thu")

            BAK_LEVEL=1

            ;;

       "Fri")

            BAK_LEVEL=1

            ;;

       "Sat")

            BAK_LEVEL=0

            ;;

       "Sun")

            BAK_LEVEL=1

            ;;

       "*")

            BAK_LEVEL=error

esac

 

export BAK_LEVEL=$BAK_LEVEL

 

echo "Today is : $CURRENT_WEEK_DAILY  incremental level= $BAK_LEVEL">>$RMAN_LOG_FILE

 

 

RUN_SHELL="

 

BAK_LEVEL=$BAK_LEVEL

export BAK_LEVEL

 

ORACLE_HOME=$ORACLE_HOME

export ORACLE_HOME

 

ORACLE_SID=$ORACLE_SID

export ORACLE_SID

 

$RMAN nocatalog TARGET sys/oracle msglog $RMAN_LOG_FILE append <<EOF

run

{

  allocate channel c1 type disk;

  allocate channel c2 type disk;

  backup incremental level= $BAK_LEVEL skip inaccessible filesperset 5 Database format='"$RMAN_BACKUP_DATA_DEST"/"$ORACLE_SID"_lev_"$BAK_LEVEL"_%U_%T' tag='"$ORACLE_SID"_lev_"$BAK_LEVEL"';

  sql 'alter system archive log current';

  backup archivelog all tag='arc_bak' format='"$RMAN_BACKUP_DATA_DEST"/arch_%U_%T' skip inaccessible  filesperset 5 not backed up 1 times delete input;

  backup current controlfile tag='ctlfile_bak' format='"$RMAN_BACKUP_DATA_DEST"/ctl_file_%U_%T';

  backup spfile tag='spfile_bak' format='"$RMAN_BACKUP_DATA_DEST"/spfile_%U_%T';

  release channel c2;

  release channel c1;

}

report obsolete;

delete noprompt obsolete;

crosscheck backup;

delete noprompt expired backup;

list backup summary;

EOF

"

# Initiate the command string

if [ "$CUSER" = "root" ]

then

    echo "Root Command String: $RUN_SHELL" >> $RMAN_LOG_FILE

    su - $ORACLE_USER -c "$RUN_SHELL" >> $RMAN_LOG_FILE

    STATUS=$?

else

    echo "User Command String: $RUN_SHELL" >> $RMAN_LOG_FILE

    /bin/sh -c "$RUN_SHELL" >> $RMAN_LOG_FILE

    STATUS=$?

fi

 

# ---------------------------------------------------------------------------

# Log the completion script.

# ---------------------------------------------------------------------------

if [ "$STATUS" = "0" ]

then

    LOGMSG="ended successfully"

else

    LOGMSG="ended in error"

fi

 

echo >> $RMAN_LOG_FILE

echo Script $0 >> $RMAN_LOG_FILE

echo ==== $LOGMSG on `date` ==== >> $RMAN_LOG_FILE

echo >> $RMAN_LOG_FILE

 

exit $STATUS

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