LINUX SHELL 自动备份数据脚本

目的：实现定时自动备份文件夹，并排除某些文件夹，写下日志，并自动清除过期的备份和日志。

主要有3个文件，自动备份和清除脚本文件，需要备份的文件夹列表文件，需要排除的文件夹列表文件，都放在/root/backup文件夹下面，备份的目标文件夹为/home/backup/192.168.0.8，所以要设定排除掉/home/backup这个文件夹，否则不知道会发生什么后果。

自动备份和清除脚本文件backup_tar_gz.sh内容如下：

#author: bill

#date: 2012-03-27

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

DATE=`date +"%Y%m%d%H%M%S"`

ProjectLst=/root/backup/backup_project.lst

ExcludeLst=/root/backup/backup_exclude.lst

if [ ! -f $ProjectLst ]

then

echo "$ProjectLst is not exist."

exit 1

fi

AllDir=/home/backup/192.168.0.8

mkdir $AllDir/$DATE

BakDir=$AllDir/$DATE

LogFile=$AllDir/log/$DATE.log

#备份保留天数

RetainDay=3

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

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

echo "--------------------------------------------------" >> $LogFile

cd $BakDir

PROJECTLIST=`cat $ProjectLst`

#backup projectlist

for Project in $PROJECTLIST

do

ProjectData=$Project

DestDir=$BakDir$Project

#echo $DestDir

#echo $ProjectData

mkdir -p ${DestDir%/*}

tar cvzpPf $DestDir.tar.gz $ProjectData -X $ExcludeLst > /dev/null

if [ $? -eq 0 ];then

echo "backup $Project done into $DestDir.tar.gz ">>$LogFile

else

echo "backup $Project fail into $DestDir.tar.gz ">>$LogFile

fi

done

echo "--------------------------------------------------" >> $LogFile

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

echo " " >> $LogFile

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

#delete old backup file

echo "delete old backup start at $(date +"%Y-%m-%d %H:%M:%S")" >> $LogFile

echo "--------------------------------------------------" >> $LogFile

ExistBakDir=`ls $AllDir`

for BakDir in $ExistBakDir

do

DirDate=`echo $BakDir | awk '{print substr($1,1,8)}'`

#echo $DirDate

if [ `echo $DirDate | grep '[0-9]\{4\}[0-9]\{2\}[0-9]\{2\}'` ] && [ $DirDate -le $(date --date="$RetainDay days ago" +"%Y%m%d") ]

then

rm -rf $AllDir/$BakDir > /dev/null

echo "[$AllDir/$BakDir],Delete Old File Success!" >> $LogFile

fi

done

echo "--------------------------------------------------" >> $LogFile

echo "delete old backup end at $(date +"%Y-%m-%d %H:%M:%S")" >> $LogFile

echo " " >> $LogFile

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

#delete old logfile

echo "delete old log file start at $(date +"%Y-%m-%d %H:%M:%S")" >> $LogFile

echo "--------------------------------------------------" >> $LogFile

cd ${AllDir}/log

ExistLogFile=`ls ${AllDir}/log`

for EachLogFile in $ExistLogFile

do

FileDate=`echo $EachLogFile | awk '{print substr($1,1,8)}'`

#echo $FileDate

if [ `echo $FileDate | grep '[0-9]\{4\}[0-9]\{2\}[0-9]\{2\}'` ] && [ $FileDate -le $(date --date="$RetainDay days ago" +"%Y%m%d") ]

then

rm -rf $AllDir/log/$EachLogFile > /dev/null

echo "[$AllDir/log/$EachLogFile],Delete Old Log File Success!" >> $LogFile

fi

done

echo "--------------------------------------------------" >> $LogFile

echo "delete old log file end at $(date +"%Y-%m-%d %H:%M:%S")" >> $LogFile

echo " " >> $LogFile

exit 0

需要备份的文件夹列表文件backup_project.lst内容如下：

/bin

/boot

/etc

/home

/lib

/lib64

/opt

/root

/sbin

/usr

/var

需要排除的文件夹列表文件backup_exclude.lst

内容如下：

/home/backup

定时任务设置如下：

0 21 * * * /root/bakcup/backup_tar_gz.sh

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