本文是一个shell脚本。主要用于Oracle 数据库备份。默认情况下，在周一晚上进行全备。其他时间进行累积增量备份。

　　使用方法：

　　假如脚本保存名为: oracle_backup.sh

　　使用方法为 oracle_backup.sh -p $ORACLE_DIRECTORY -L $BACKUP_LEVEL

　　ORACLE_DIRECTORY 可从dba_directories 里查询所得。

　　BACKUP_LEVEL： 0（全备) 1 增量。

 

#!/bin/sh################################################################: This script is used to backup Oracle database with RMAN.   ##: A full backup will be taken early moring on Monday .       ##: I recomment that the incremental backup should be taken on ##: every day except Monday.                                   ##: Made by Halberd(Asiainfo-PMO) , 20160827                   ##: Modify Records:                                            ##: 1.                                                         ##: Thu May  4 19:42:54 CST 2017                               ##: halberd                                                    ##   add getopts . make the scripts more flexible              #################################################################: initial environmentsource ~/.bash_profile#: judge if parameters are offered[ $# == 0 ] && echo -e "Usage :: $0 -[pl]\n p --> backup path \n l --> backup level with 0(full) or 1(incremental) \n examples:: \n $0 -p /home/oracle -l 1" && exit 1#: variables setting#:             attach the arguments values to their variableswhile getopts p:l: optiondo    case "$option" in    p)            BACK_PATH="$OPTARG"        ;;  l)            if        [ "$OPTARG" == 0 ] ;        then        LEVEL=0        elif        [ "$OPTARG" == 1 ] ;        then        LEVEL=1        else        echo "Level 0 or 1 is recommended. You should better choose 0 for full backup or 1 for incremental backup"                exit 1        fi        ;;        \?)            echo "Usage:  [-p 
     
      ] [-l]"            echo "-p : the path in which backup files will be allocated"            echo "-l : RMAN backup level"            exit 1        ;;    esacdone#:             initial other basic variablesmd=`date +%m%d`weekday=`date +%w`if [ -z "$BACK_PATH" ] ;then    BACK_PATH="$ORACLE_HOME"/dbs    echo -e "WARNING :: The backup piecies will be stored in $ORACLE_HOME/dbs .\n "fiif [ -z "$LEVEL" ] ;then    if [ "$weekday" == 1 ] ;    then LEVEL=0    else LEVEL=1    fifi   BACK_FORMAT="$BACK_PATH"/db"$LEVEL"'_%d_%T_%u' echo "BACKUP_PATH: $BACK_PATH" echo "BACKUP_LEVEL:" "$LEVEL" echo "BACKUP_FORMAT: $BACK_FORMAT"#: generate the rman commandsback_comm='run{     allocate channel c1 type disk;\nallocate channel c2 type disk;\nallocate channel c3 type disk;\nbackup as compressed backupset incremental level '"$LEVEL"' format '\'"$BACK_FORMAT"\'' database include current controlfile plus archivelog delete input;\nrelease channel c1;\nrelease channel c2;\nrelease channel c3;\n}\ncrosscheck archivelog all;\ndelete noprompt expired archivelog all;\nreport obsolete;\ndelete noprompt obsolete;\nexit'#: execute rman backup echo -e $back_comm| rman target sys/oracle log "$BACK_PATH"/rman_"$md".logexit