使用 RMAN 同步数据库
使用 RMAN?同步數(shù)據(jù)庫
使用 RMAN 同步數(shù)據(jù)庫
一．概述
二 操作步驟
(一)．把生產(chǎn)庫置為歸檔模式
(二).啟動(dòng)rman做數(shù)據(jù)庫0級(jí)備份
(三)．修改生產(chǎn)庫數(shù)據(jù)庫到未歸檔
(四)．拷貝備份集到測試庫
(五).在測試庫上的操作
一．概述
因項(xiàng)目組遇到要2臺(tái)數(shù)據(jù)庫同步的問題，決定使用rman來實(shí)現(xiàn)此功能，生產(chǎn)庫運(yùn)行在非歸檔模式，所以操作起來相對(duì)麻煩些，生產(chǎn)庫最多允許丟失半天數(shù)據(jù)，晚上可以重啟數(shù)據(jù)，這樣就為我們使用rman創(chuàng)造了必要條件，先來理清一下操作步驟:
1. 首先shutdown生產(chǎn)庫(node1) ,并修改成歸檔模式。
2. 使用rman做一個(gè)0級(jí)備份集，并設(shè)置控制文件為自動(dòng)備份。
3. 修改生產(chǎn)庫為非歸檔模式，并置為open狀態(tài)。
4. 到測試庫上面，修改數(shù)據(jù)庫為歸檔模式，因沒有性能要求，不需要再改回非歸檔，方便恢復(fù)操作。
5. 拷貝備份集到測試庫(node2)，備份集的存放位置和生產(chǎn)庫保持一致。
6. 啟動(dòng)測試庫到nomount狀態(tài)。
7. 啟動(dòng)rman，第一步先恢復(fù)controlfile.里面包含了重要的備份信息。
8. 更改數(shù)據(jù)庫到mount狀態(tài).
9. 恢復(fù)數(shù)據(jù)庫 restore database,注意,此步驟只會(huì)使用最近的一次0級(jí)備份，而不會(huì)應(yīng)用增量或差異備份。
10. Recover database,此步驟會(huì)首先應(yīng)用所有的差異或增量備份，然后恢復(fù)歸檔日志，當(dāng)然在恢復(fù)歸檔時(shí)會(huì)出現(xiàn)錯(cuò)誤，在此可以忽略掉。
11. 使用resetlogs關(guān)鍵字打開數(shù)據(jù)庫，數(shù)據(jù)庫同步完成。
以后每天按上面操作寫成腳本自動(dòng)執(zhí)行即可，需要注意的地方是把0級(jí)備份改為1級(jí)或2級(jí)即可,這樣就可以每半月做一次0級(jí)備份，每天晚上做一次1級(jí)或2級(jí)備份，然后恢復(fù)到測試庫，以此來實(shí)現(xiàn)2數(shù)據(jù)庫的同步.
二?操作步驟?(一)．把生產(chǎn)庫置為歸檔模式.
1．?[oracle@primary orcl]$ Sqlplus ‘/as sysdba’
2．?Sql>shutdown immediate;
3．?Sql>startup mount;
4．?Sql>alter database archivelog;
5．?Sql>alter database open;
6．?Sql>quit
(二).啟動(dòng)rman做數(shù)據(jù)庫0級(jí)備份
1.?[oracle@primary orcl]$ rman target /
2.?RMAN>CONFIGURE CONTROLFILE AUTOBACKUP ON;
3. RMAN> backup incremental level 0 database format 'full_db_%d_%s_%t_%p';
--第一次同步操作時(shí)用該語句。
RMAN>quit;
日常同步備份時(shí)使用1級(jí)備份
4.?[oracle@primary orcl]$ rman target /
5.?RMAN>CONFIGURE CONTROLFILE AUTOBACKUP ON;
6. RMAN> backup incremental level 1 database format 'increment _db_%d_%s_%t_%p';
7. RMAN>quit;
(三)．修改生產(chǎn)庫數(shù)據(jù)庫到未歸檔.
1.?[oracle@primary orcl]$?Sqlplus ‘/as sysdba’
2. Sql>alter database noarchivelog;
3. Sql>alter database open;
4. Sql>quit;
(四)．拷貝備份集到測試庫
拷貝備份集文件到測試庫，并和生產(chǎn)庫相同位置,可以使用sftp或ftp等工具完成。
(五).在測試庫上的操作
1.?[oracle@primary orcl]$ Sqlplus ‘/as sysdba’
2.?Sql>startup nomount;
3.?Sql>quit;
4.?[oracle@primary orcl]$ rman target /
5. RMAN> restore controlfile from/opt/oracle11g/u01/dbs/c-1190421672-20080819-01';
--該處可修改為實(shí)際備份集。
6.?RMAN> alter database mount;
7.?RMAN> restore database;
8.?RMAN> recover database;
9.?RMAN>alter database open resetlogs;
注意，所有的增量或差異備份都是用recover database來恢復(fù)的，如果丟失增量備份，需用下面方法啟動(dòng)數(shù)據(jù)庫，將可能導(dǎo)致丟失大量數(shù)據(jù):
啟動(dòng)sqlplus，使用下面語句清除丟失的增量備份.
Sql>recover database using backup controlfile until cancel;
ORA-00279: ü 1839635 ( 08/18/2008 23:25:21 ú) 1 ±è
ORA-00289: ¨é: /archive/1_74_662640938.dbf
ORA-00280: ü 1839635 ( 1) ò #74
Specify log: {=suggested | filename | AUTO | CANCEL}
Cancel <需要手工輸入后回車>
Media recovery cancelled.
最后執(zhí)行resetlogs關(guān)鍵字啟動(dòng)數(shù)據(jù)庫。
SQL> alter database open resetlogs;
Database altered.
備份及同步腳本:
?rman_backup_v1.1.sh
點(diǎn)擊(此處)折疊或打開
#!/bin/bash?
###################################################################?
# Usage:?
# backup_rman_v1.1.sh?[all|repeat|sync]?
#?all:?list?all?backup?file.?
#?repeat:?repeat?level-1 increment backup.?
# sync:?sync backup?file?to?target?database.?
###################################################################?
export?ORACLE_HOME=/opt/oracle11g/u01?
export?ORACLE_SID=primary?
export?LD_LIBRARY_PATH=${ORACLE_HOME}/lib:${ORACLE_HOME}/ctx/lib?
export?PATH=$PATH:${ORACLE_HOME}/bin?
export?NLS_LANG="American_america.zhs16gbk"?
export?ORACLE_OWNER=oracle?
export?backup_dir=/home/oracle/backup/backup?
export?log=/home/oracle/backup/log?
rsync_dir=$backup_dir #sync?dir?
controlfile_dir=$backup_dir/controlfile?
username=oracle #target?OS?,oracle user?
password=go2north #target?oracle user?password?
target_host=172.16.5.27?
today_backup=`date?+'%Y-%m-%d'`?
mail_to_admin="zhaorupeng@126.com"?
########set?display?color#########?
white=$(echo?-e?"\e[39;40m")?
green=$(echo?-e?"\e[36;40m")?
red=$(echo?-e?"\e[31;40m")?
purple=$(echo?-e?"\e[35;40m")?
yellow=$(echo?-e?"\e[33;40m")?
blue=$(echo?-e?"\e[34;40m")?
########color?set end ############
#?data?backup?status.?
# 0:?backup failed.?
# 2:?default?
# 9:?success?
backup_status=2
#database?status?check?,If?it's not turn on,the value is 0,or else 1?
ora_stat=`ps -ef | grep -i 'ora_smon_*' |grep -v grep| wc -l`
#database mode check,If it's archive mode,that?value?is 1,or?else?0;?
arch=`ps?-ef?|?grep?-i?'ora_arc_*'?|?grep?-v grep?|?wc?-l`
function?open_database()?
{?
if?[?"$ora_stat"?=?0?];?then?
cat?<<?EOF?|?$ORACLE_HOME/bin/sqlplus?'/as sysdba'?
shutdown immediate;?
startup;?
quit;?
EOF?
backup_status=2?
if?[?"$?"?=?1?];?then?
echo?"database unable strtup!"?
backup_status=0?
exit 1?
fi?
fi?
}?
function?open_archive_mode()?
{?
if?[?"$arch"?=?0?];?then #if?arch=1,nothing,because it was already on archive mode?
echo?"****************open archive mode*************"?
cat?<<?EOF?|?$ORACLE_HOME/bin/sqlplus?'/as sysdba'?
shutdown immediate;?
startup mount;?
alter database archivelog;?
alter database?open;?
quit;?
EOF?
fi?
}?
function?return_initaliztion_mode()?
{?
if?[?"$arch"?=?0?-a?"$backup_status"?>?0?];?then?
#if?arch=1,nothing,because initialization mode is archive mode?
echo?"********* return initialization database mode**********"?
cat?<<?EOF?|?$ORACLE_HOME/bin/sqlplus?'/as sysdba'?
shutdown immediate;?
startup mount;?
alter database noarchivelog;?
alter database?open;?
quit;?
EOF?
fi?
if?[?"$?"?=?0?];?then?
????echo?"return initalization database successfully."?
fi?
echo?"************return initialization database mode *********"?;?
}?
function?increment_backup_level_1()?# incremental level-1 backup?
{?
open_database?
open_archive_mode?
echo?"******** `date +'%Y%m%d'` Do level-1 increment backup....*********************"?2>&1;
cat?<<?EOF?|?$ORACLE_HOME/bin/rman?target?/?|tee $log/rman_increment_db_`date?+'%y%m%d%H%M'`.log?
configure maxsetsize?to?20g;?
configure controlfile autobackup on;?
configure controlfile autobackup format?for?device?type?disk?to?'$controlfile_dir/%F';?
run?{?
allocate channel c01?type?disk;?
backup incremental level 1 database format?'$backup_dir/increment_db_%d_%s_%t_%p'?tag="increment_db_`date +'%y%m%d%H%M'`";?
release channel c01;?
}?
configure controlfile autobackup off;?
crosscheck backup of database;?
crosscheck archivelog?all;?
delete?noprompt obsolete?;?
delete?noprompt expired backup;?
delete?noprompt backup completed before?'sysdate-30';?
delete?noprompt archivelog until time?'sysdate-14';?
EOF?
if?[?"$?"?=?0?];then?
????echo?"*******************level-1 backup completed!************************"?
????????backup_status=9?
else?
????echo?"*****************level-1 backup databae failed,please contact oracle dba*******"?
????backup_status=0?
fi?
return?$backup_status?
return_initaliztion_mode?
}?
function?level_0_backup_database()?
{?
open_database?
open_archive_mode?
echo?"************* Do level-0 backup ****************"?
cat?<<?EOF?|?$ORACLE_HOME/bin/rman?target?/?|tee $log/rman_full_db_`date?+'%y%m%d%H%M'`.log?
configure retention policy?to?redundancy 30;?
configure maxsetsize?to?20g;?
configure controlfile autobackup on;?
configure controlfile autobackup format?for?device?type?disk?to?'$controlfile_dir/%F';?
crosscheck backup of database;?
crosscheck archivelog?all;?
delete?noprompt obsolete?;?
delete?noprompt expired backup;?
delete?noprompt backup completed before?'sysdate-30';?
delete?noprompt archivelog until time?'sysdate-5';?
run?{?
allocate channel c1?type?disk;?
backup incremental level 0 database format?'$backup_dir/full_db_%d_%s_%t_%p'?tag="full_db_`date +'%y%m%d%H%M'`";?
release channel c1?;?
}?
configure controlfile autobackup off;?
quit;?
EOF?
if?[?"$?"?=?0?];then?
????echo?"*******************level-0 backup completed!************************"?
????????backup_status=9?
else?
????echo?"******************level-0 backup databae failed,please contact oracle dba*******"
????backup_status=0?
fi?
return?$backup_status?
return_initaliztion_mode?
}?
function?repeat_increment_backup()?
{?
????if?[?"$#"?=?0?];?then?
????????exit 0?
????else
??????????if?[?"$1"?=?"repeat"?];?then?
????????????echo?"************do database increment backup again**************"?
????????????increment_backup_level_1 $ORACLE_HOME $log?$backup_dir?
????????????echo?"************repeat increment backup completed!**************"?
??????????else?
????????????echo?"command error,please use parameter 'repeat'"?
????????????exit 0?
??????????fi?
????fi?
}
# sync?target?database backup?files?#?
function?sync()?
{?
ping $target_host?-c 1?>?/dev/null?#?test?network?link?#?
if?[?$??!=?0?]?;?then?
????echo?"sync host:$red $target_host $white link failed!,please check network."?
????exit 1?
fi?
if?[?-f?/usr/bin/rsync?];?then?
#check resync command #?
???cat?<<?EOF?>?sync?
#!/usr/bin/expect?
spawn?/usr/bin/rsync?-avzu $rsync_dir/?$username@$target_host:$rsync_dir?
expect?"password:"?
send?"$password\n";?
send?"quit\n";?
interact?
EOF?
echo?"********copy backup files to target database********"?
??if?[?-f sync?-a?-f?/usr/bin/expect?];?then?
????chmod?+x?sync?
????./sync?
????rm?-rf?./sync?
#list sync?files?
backup_file=`ls?-ltR?--full-time $backup_dir/?|?egrep?-i?"increment_|c-"?|?grep?-i $today_backup?|?awk?'{print $6 " " substr($7,1,8) " " $9}'`?
????echo?"sync files:"?
????echo?"$blue"?
????j=0?
????for?i?in?$backup_file?
????do?
????????((j++))?
????????a[$j]=$i?
????????if?[?$j?=?3?];?then?
????????????echo?"${a[`expr $j - 2`]} ${a[`expr $j - 1`]} ${a[$j]}"?
?????????????j=0?
????????fi?
????done?
????echo?"$white"?
????echo?" transtion has succeed.please check the backup files on target database."?
????exit 0?
???else?
??????echo?"command expect not found, please install Tcl/expect"?
??????exit 1?
???fi?
else?
????echo?"command rsync not found,please install!"?
????exit 1?
fi?
}?
if?[?-f $log/autobak_`date?+'%Y%m%d'`.log?];?then?
????rm?-rf $log/autobak_`date?+'%Y%m%d'`.log?
fi?
(?
level_0_backup_status=`find?$backup_dir/?-name?'full_db_*'|?grep?-i full_db?|grep?-v grep?|?wc?-l` 2>&1?
level_1_backup_status=`ls?-l?--full-time $backup_dir/?|grep?-i?'increment_db_*'|?grep?-i $today_backup|grep?-v grep?|?wc?-l` 2>&1?
if?[?$level_0_backup_status?=?0?-a $backup_status?=?2?];?then?
????level_0_backup_database?
????backup_status=$??
fi?
if?[?$level_1_backup_status?=?0?-a $backup_status?=?2?];?then?
????increment_backup_level_1?
????backup_status=$??
fi?
# ############Today's database backup information##########?
# check today's backup?status?#?
check_backup=`ls?-l?--full-time $backup_dir/?|?egrep?-i?"increment_db_|full_db_"?|?awk?'{print $6}'?|?grep?-i $today_backup?|?wc?-l`?
# check today's controlfile backup information #?
control_file=`ls -lt --full-time $controlfile_dir/ | grep -i "c-*" | grep -i $today_backup | awk '{print?$6?" "?substr($7,1,8)?" "?$9}'`?
# check today's increment backup information #?
backup_file_info=`ls?-lt?--full-time $backup_dir/?|?egrep?-i?"increment_db_|full_db_"?|?grep?-i $today_backup?|?awk?'{print $6 " " substr($7,1,8) " " $9}'`?
log_file_info=`ls?-lt?--full-time $log/?|?egrep?-i?"increment_db_|full_db_"?|?grep?-i $today_backup?|?awk?'{print $6 " " substr($7,1,8) " " $9}'`?
if?[?"$1"?=?"all"?]?;?then?
????backup_file_info=`ls?-lt?--full-time $backup_dir/?|?egrep?-i?"increment_db_|full_db"?|?awk?'{print $6 " " substr($7,1,8) " " $9}'`?
????control_file=`ls?-lt?--full-time $controlfile_dir/?|?grep?-i?"c-*"|?awk?'{print $6 " " substr($7,1,8) " " $9}'`?
fi?
????
#?print?today's backup information including controlfile and log information #?
if [ $check_backup -ge 0 ]; then
????if [ "$1" = "repeat" ] ; then?
????????repeat_increment_backup $1?
????else?
????????????????echo " ############Today's database backup information##########?"?
???????????if [ "$1" = "all" ]; then?
????
????????????????????today_backup=`ls -l --full-time $backup_dir/ | grep -i full_db_* | awk '{print $6}'`?
????????????
????????????echo "List?date?$purple ${today_backup[0]}?$white level-0 backup database after?file?information"?
???????????else?
????????????????echo "Date?$purple $today_backup $white database backup is completed."?
????????????????fi?
????????????echo "backup?file?directory:?$backup_dir"?
????????????echo "backup?file?information:?$green"?
????????echo ""?
????????j=0?
????????????for i in $backup_file_info?
????????do?
????????????((j++))?
????????????a[$j]=$i?
????????????if [ $j = 3 ]; then?
????????????????echo "${a[`expr $j?-?2`]}?${a[`expr $j?-?1`]}?$backup_dir/${a[$j]}"?
?????????????????j=0?
????????????fi?
????????done?
????????????echo "$white"?
????????????????echo "Controlfile information:$yellow"?
????????echo ""?
????????j=0?
????????for p in $control_file;do?
????????????((j++))?
????????????a[$j]=$p?
????????????if [ $j = 3 ] ; then?
????????????????????echo "${a[`expr $j?-?2`]}?${a[`expr $j?-?1`]}?$controlfile_dir/${a[$j]}"?
????????????????????j=0?
????????????fi?
??????????done?
????????echo "$white"?
????????????????echo "log?information:$blue"?
????????echo ""?
????????j=0?
????????for p in $log_file_info;do?
????????????((j++))?
????????????a[$j]=$p?
????????????if [ $j = 3 ] ; then?
????????????????????echo "${a[`expr $j?-?2`]}?${a[`expr $j?-?1`]}?$log/${a[$j]}"?
????????????????????j=0?
????????????fi?
??????????done?
????????echo "$white"?
????????????echo "If?you want increment backup database again,please use \"repeat\" parameter"?
????????????????echo?" ############Today database backup information the end ########## "?
????????fi?
fi?
# end?print?backup information #?
#?copy?backup?file?#?
if?[?"$1"?=?"sync"?]?;?then?
????backup_status=9?
fi?
if?[?"$backup_status"?=?9?];?then?
????sync?
else?
?????echo?"Today's Backup file is synced. please check whether it's in the target database."?
?????echo?"If you want to sync again,please use \"sync\" parameter."?
?????exit 0?
fi?
echo?"If you want to view all backup information,Please use \"all\" parameter."?
)?2>?$log/autobak_`date?+'%Y%m%d'`.log?
#mail?-s?"`date +'%Y%m%d'`database backup information"?$mail_to_admin<$log/autobak_`date?+'%Y%m%d'`.log
恢復(fù)腳本:
rman_restore_v1.1.sh
#!/bin/sh
export ORACLE_HOME=/opt/oracle11g/u01
export ORACLE_SID=primary
export LD_LIBRARY_PATH=${ORACLE_HOME}/lib:${ORACLE_HOME}/ctx/lib
export PATH=$PATH:${ORACLE_HOME}/bin
export NLS_LANG="American_america.zhs16gbk"
export ORACLE_OWNER=oracle
export backup_dir=/home/oracle/backup/backup
export log=/home/oracle/backup/log
rsync_dir=$backup_dir?#sync?dir
controlfile_dir=$backup_dir/controlfile
username=oracle?#target?OS?,oracle user?
password=go2north?#target?oracle user password?
target_host=172.16.5.27
today_backup=`date?+'%Y-%m-%d'`
today=`date?+'%Y%m%d'`
white=$(echo?-e?"\e[39;40m")
green=$(echo?-e?"\e[36;40m")
red=$(echo?-e?"\e[31;40m")
blue=$(echo?-e?"\e[33;40m")
backup_status=2?#data?backup status?,0:?backup faild,1:?1 level increment backup,2?:?0 level backup
#?Begin change restore variable
restore_status=true
last_restore_file=increment_db_ORCL_76_663449691_1
last_restore_date=(2008-08-22 19:36)
last_recover_time="2008-08-28 15:12:08"
last_restore_time=2
last_restore_num=3
#?End change restore variable
#sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/t=[0-9]\+/t='$((t+1))'/'?$0
#sed?-i?'s/t=[0-9]\+/t='$((t+1))'/'?$0
restore_file=`ls?-lt?--full-time $backup_dir/?|?grep?-i?'increment_db_*'?|?awk?'{print $9}'|head?-1`
controlfile=`ls?-lt?--full-time $controlfile_dir?|?grep?-i?'c-*'?|?awk?'{print $9}'|?head?-1`
recover_time=`ls?-lt?--full-time $backup_dir/?|?grep?-i?'increment_db_*'?|?awk?'{print substr($7,1,5)}'|?head?-1`
recover_date=(`ls?-lt?--full-time $backup_dir/?|?grep?-i?'increment_db_*'?|?awk?'{print $6 " " substr($7,1,5)}'?|?head?-1`)
recover_times=`date?+'%Y-%m-%d %H:%M:%S'`
function update_backup_info()
{
????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/restore_status=.*/restore_status=true/'?$0
????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_restore_file=.*/last_restore_file='"${restore_file}"'/'?$0
????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_recover_time=.*/last_recover_time='"\"${recover_times}\""'/'?$0
????????????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_restore_date=.*/last_restore_date='"(${recover_date[*]})"/?$0
????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_restore_time=.*/last_restore_time='$((last_restore_time+1))'/'?$0
????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_restore_num=.*/last_restore_num='$((last_restore_num+1))'/'?$0
}
function restore_database()?
{
????echo?"************* recover database start ****************"
????????cat?<<?EOF?|?$ORACLE_HOME/bin/sqlplus?'/as sysdba'
????????shutdown immediate;
????????startup nomount;
EOF
????????cat?<<?EOF?|?$ORACLE_HOME/bin/rman?target?/?|tee $log/rman_restore_db_`date?+'%y%m%d%H%M'`.log
????????run?{
????????????allocate channel c01?type?disk;
????????????allocate channel c02?type?disk;
????????????allocate channel c03?type?disk;
????????????restore controlfile from?"$controlfile_dir/$controlfile";?
????????????alter database mount;
????????????recover database;
????????????release channel c01;
????????????release channel c02;
????????????release channel c03;
????????}
????????alter database open resetlogs;
EOF
????????if?[?"$?"?=?0?];then?
????????????echo?"*******************restore be completed!************************"
????????????backup_status=9
????????????update_backup_info
????????????exit 0
????????else
????????????echo?"******************restore database failed,please contact oracle dba*******"
????????????????????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_recover_time=.*/last_recover_time='"\"${recover_times}\""'/'?$0
????????????sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/restore_status=.*/restore_status=false/'?$0
????????fi
????????????return?"$backup_status"
}
#delete backup?file?on the weekend again
#file_info=`ls?-l $backup_dir/?|?grep?-i?'increment_backup_*.gz'|wc?-l`
#if?[?$file_count?-gt?7?]
#then
#?del_files=`ls?-lR $backup_dir|?egrep?-i?"increment_db_|full_db_"|grep \`date?-d?"7 days ago"?+'%Y-%m-%d'\`|awk?"{print $9}"`
#?rm?-f $del_files;
#?if?[?$??=?0?]
#?then
#?echo?"removing $del_files"
#?fi
#else
#?echo?"No last file"
#
#fi
###########################################
if?[?"$last_restore_file"?!=?"$restore_file"?-o?"${last_restore_date[1]}"?!=?"$recover_time"?];?then?
restore_database????
fi
if?[?"$1"?=?"repeat"?]?;?then
???????????????restore_database
fi?
if?[?"$restore_status"?=?"true"?-o?"${last_restore_date[0]}"?=?${recover_date[0]}?];?then?
echo?"Today's sync already completed!"
echo?"Last restore file: $backup_dir/$last_restore_file"
echo?"Last restore time: $last_restore_time"
echo?"The number of times the database be restored today: $last_restore_num"
echo?"The total number of times the database have ever been restore: $last_recover_time"
sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_recover_time=.*/last_recover_time='"\"${recover_times}\""'/'?$0
else
sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_restore_time=.*/last_restore_time=0/'?$0
sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/restore_status=.*/restore_status=false/'?$0
sed?-i?'/^# Begin change restore variable/,/^# End change restore variable/s/last_recover_time=.*/last_recover_time='"\"${recover_times}\""'/'?$0
fi
轉(zhuǎn)載于:https://blog.51cto.com/xin521long/1832844
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