#!/bin/bash#svn服务器地址如下，本机的ip地址为192.168.4.248IP152=192.168.3.152Password=xxxx2015fewdaysago=`date -d "8 day ago" +%Y%m%d`now=`date +%Y%m%d`#定义svn备份日志路径logdir=/svnbackup/log#定义svn备份路径backupdir=/svnbackup#定义httpd的配置文件subdir=/etc/httpd/conf.d#定义 函数 连接192.168.3.152 svn服务器connection152() {        cd $backupdir/backup152        #如果系统存在8天前的备份则删除。        if [[ -d $fewdaysago ]]        then        rm -rf $fewdaysago        else        echo "1.  $fewdaysago not exist in /svnbackup/backup152/ " >> $logdir/report152_$now.log 2>&1        fi        echo "2.  scp backup svn from the 3.152 to 4.248 right now " >> $logdir/report152_$now.log 2>&1        #这里利用expect  实现自动输入密码等操作。使用该命令前，请先安装yum  -y   install   expect*        expect -c "                #永不超时                set timeout -1                #定义一个子shell，执行scp命令，将192.168.3.152上的svn备份数据，拷贝到本机。                spawn scp -r root@$IP152:/backup/svn/backup/$now.tar.gz $backupdir/backup152                 #自动化输入密码                expect \"root@$IP152's password:\"                send \"$Password\r\"                #完成传输则结束命令。                expect \"eof\"                "                #对上面的操作进行判断，如果正常执行完，则继续下面的动作。        if [[ $? = "0" ]];        then        echo "3.  backup 152svn have done " >> $logdir/report152_$now.log 2>&1        fi        echo "4.  unpack the $now.tar.gz" >> $logdir/report152_$now.log 2>&1        cd $backupdir/backup152        tar -xf $now.tar.gz        echo "5.  delete tar pack " >> $logdir/report152_$now.log 2>&1        rm -f $now.tar.gz        echo "6.  Testing rollback 152svn backup right now" >> $logdir/report152_$now.log  2>&1        #删除本机svn库目录下的所有文件及目录除了conf目录。这里本机做这个是为了测试拷贝过来的svn备份文件能够正常恢复。演练svn服务器灾后恢复。        cd $backupdir/152        ls -l $backupdir/152 | grep -v "conf" | awk '{print $9}' | while read dir        do        rm -rf $dir        done        echo "7.  yesterday data all has delete done" >> $logdir/report152_$now.log  2>&1        echo "8.  rollback now" >> $logdir/report152_$now.log  2>&1}                #开始svn灾后恢复动作。start() {        mv $backupdir/backup152/backup/svn/$now $backupdir/backup152/        rm -rf $backupdir/backup152/backup/*        rm -rf $backupdir/backup152/backup/        cd $backupdir/backup152/$now        cp -fvr $backupdir/backup152/$now/* $backupdir/152            #这里svn结合了httpd，方便用户web端访问。所以，httpd的配置文件中，就要修改下svn工程目录的位置。        cd $subdir        echo "9.  change httpd subversion.conf" >> $logdir/report152_$now.log  2>&1                #自动化执行httpd配置文件替换和httpd重启动作。        expect -c "                set timeout -1                spawn cp -ar $subdir/subversion152 $subdir/subversion.conf                 expect \"cp: overwrite 'subversion.conf'?\"                send \"yes\r\"                expect \"eof\"                "        #给目录赋权。        echo "10.  chown -R apache.apache $backupdir/152"        chown -R apache.apache $backupdir/152        /etc/init.d/httpd restart}connection152start

    以上shell可以执行svn的远程异地备份动作。磁盘监控以及mail报警，在下篇日志将介绍。