shell 远程备份日志

#!/bin/bash #Function:自动备份给定列表中的目录或文件,并且可以保留N天备份的档案。

#可备份至远程主机指定的目录下,但需本机能免密码登录到远程主机,用到ssh-keygen

#该脚本分为两个文件:执行文件backup.sh和备份项目文件bakfile.lst,两个文件必须位于同一目录下

#Author:JianJie #Date:2016/8/26 #Usage:sudo bash backup.sh & #Version:v2 ###############################################################

logFile=/backup/local/log/`date +"%Y-%m"`.log

#日志文件

logDir=/backup/local/log myDate=`date +"%Y-%m-%d"`                

bakFileLst=bakfile.lst          

#需要备份的文件或目录放到该文件中 bakDir=/backup/local        

#备份至此目录 keepDays=5              

#文件保留天数 remoteHost="rhel6.8:rhel7"    

#需要备份至远程主机的地址,注意本机需免密码登陆到远程主机,多个主机地址或主机名之间用‘:’分割 remoteHostDir=/backup/$HOSTNAME    

#远程主机备份目录 currentDir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"  

#当前运行脚本所在的目录

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

#判断日志目录和日志文件是否存在

if [ ! -d $logDir ];then

  mkdir -p $logDir  

touch $logFile else  

if [ ! -e $logFile ];then  

touch $logFile  

fi

fi

#开始记录日志

echo "Backup start at $(date +"%Y-%m-%d %H:%M:%S")" >> $logFile

echo "--------------------------------------------------------" >> $logFile

echo " " >> $logFile

#判断保存备份文件的文件列表'bakfile.lst'是否存在

if [ ! -e $currentDir/$bakFileLst ];then  

echo "Error:Important file [$currentDir/$bakFileLst] has been lost,now creating..." >> $logFile  

touch $currentDir/$bakFileLst  

echo "The file [$currentDir/$bakFileLst] has been created,but you still need to write data in it!" >> $logFile  

echo " " >> $logFile   echo "--------------------------------------------------------" >> $logFile  

echo "Backup end at $(date +"%Y-%m-%d %H:%M:%S")" >> $logFile  

echo " " >> $logFile  

exit 3

fi

paths=`cat $currentDir/$bakFileLst`

for path in $paths

do  

baseName=`echo "$path" | xargs basename`  

oldFile=$bakDir/$baseName.$(date --date="$keepDays days ago" +"%Y-%m-%d").txz  

#判断路径中备份的是文件还是目录  

#若路径中要备份的是文件,则先进入指定路径中的上一级  

if [ -f "$path" ];then    

#进入指定路径中的上一级目录    

cd `echo "$path" | cut -d "/" -f 1-$(echo "$path"|gawk -F"/" '{print NF-1}')`     

#若要备份的文件已经存在,则不再重复备份    

if [ -f $bakDir/$baseName.$myDate.txz ];then      

echo "Backup file [$bakDir/$baseName.$myDate.txz] already exists!" >> $logFile    

else      

cp -RHpf $baseName $bakDir      

cd  $bakDir      

#备份档案格式为.tar.xz,可根据需要调整,如.tar.gz或者.tar.bz2      

tar -cJf $baseName.$myDate.txz $baseName      

#将备份后的文件通过scp备份到远程主机      

for host in $(echo "$remoteHost" | sed 's/:/ /g')      

do        

scp -o ConnectTimeout=10 $baseName.$myDate.txz $host:$remoteHostDir >>$logFile 2>/dev/null && \        

echo "Successful backup [$path] to the remote host:[$host:$remoteHostDir]" >>$logFile || \        

echo "Backup [$path] to the remote host:[$host:$remoteHostDir] failed,please check it" >>$logFile      

done        

#备份完成,删除拷贝过来的源文件        

rm -rf $baseName        

echo "Backup [$path] done into [$bakDir] successfuly!" >> $logFile

#若存在N天前旧文件,则删除它        

if [ -f $oldFile ];then          

rm -rf $oldFile          

echo "[$oldFile],delete old file successfuly!" >> $logFile        

fi    

fi  

#路径中备份的是目录  

elif [ -d "$path" ];then      

#先判断要备份的文件是否已经存在,若存在则不再重复备份    

if [ -f $bakDir/$baseName.$myDate.txz ];then      

echo "Backup file [$bakDir/$baseName.$myDate.txz] already exists!" >> $logFile    

else      

cd $path      

cd ..      

cp -RHpf $baseName $bakDir      

cd  $bakDir      

tar -cJf $baseName.$myDate.txz $baseName      

#将备份后的文件通过scp备份到远程主机      

for host in $(echo "$remoteHost" | sed 's/:/ /g')      

do        

scp -o ConnectTimeout=10 $baseName.$myDate.txz $host:$remoteHostDir >>$logFile 2>/dev/null && \        

echo "Successful backup [$path] to the remote host:[$host:$remoteHostDir]" >>$logFile || \        

echo "Backup [$path] to the remote host:[$host:$remoteHostDir] failed,please check it" >>$logFile      

done        

#备份完成,删除拷贝过来的源文件        

rm -rf $baseName        

echo "Backup [$path] done into [$bakDir] successfuly!" >> $logFile        

#若存在N天前旧文件,则删除它        

if [ -f $oldFile ];then          

rm -rf $oldFile          

echo "[$oldFile],delete old file successfuly!" >> $logFile        

fi    

fi  

else    

echo "Wrong path or file:[$path],please check it" >>$logFile   fi done echo " " >> $logFile echo "-------------------------------------------" >> $logFile

echo "Backup end at $(date +"%Y-%m-%d %H:%M:%S")" >> $logFile

echo " " >> $logFile

exit 0