完全備份數據和差異備份數據的shell腳本
#!/bin/bash # # Description: 該腳本功能,以周為單位循環;周五實行完全備份,周六不備份,周日至周四實行差異備份; # 因工作需要,不實行壓縮打包的方式,采用cp完全備份,rsync差異備份; # 若要使用該腳本,請直接修改下面的兩個參數:BackupPath和DATAPath,其他地方請不要修改; # DATE: 2017-04-24 22:43:00 # MODIFY DATE: 2017-04-28 10:00:00 # VERSION: 1.1 # Author: xixi_chan # 導入PATH環境變量 export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/bin:/sbin:/root/bin # 重新定義IFS變量避免目錄或文件名存在空格時被分割 IFS=`echo -en "\n\b"` # 定義全局變量 BackupPath=/mnt/backup_data/ # 指定備份路徑 DATAPath=/data/ac-cnc/ # 需要備份的目錄 Time=`date +%Y-%m-%d` # 定義Today的時間變量 Host=`echo $HOSTNAME | awk -F‘.‘ ‘{print $1}‘` # 定義主機名 LogFile="/var/log/${Host}/${Host}_${Time}.log" # 定義日誌文件名稱 LogDir=`echo "$LogFile" | sed -r ‘s@[^/]+/?$@@g‘` # 定義日誌文件所在的目錄 DirFile=`ls $DATAPath` # 將備份路徑下的文件及目錄保存至變量DirFile中 FirstFile="${BackupPath}${Host}_${Time}/`basename ${DATAPath}`/" # 根據時間定義當前備份的目錄 OldFirstFile="${BackupPath}${Host}_$(date +%Y-%m-%d --date=‘7 days ago‘)" # 定義7天前的備份目錄 # 記錄日誌文件的開頭部分 Head() { [ ! -d $LogDir ] && mkdir $LogDir echo "---------------------The backup starts----------------------" > $LogFile echo >> $LogFile 2>&1 echo "Start Backup $DATAPath $(date +"%y-%m-%d %H:%M:%S")" >> $LogFile 2>&1 echo >> $LogFile 2>&1 echo "---------------------The backup starts----------------------" >> $LogFile 2>&1 echo >> $LogFile 2>&1 echo >> $LogFile 2>&1 } # 完全備份 FullBackup(){ echo "Today is week: `date +%a`, Start performing a full backups..." echo >> $LogFile 2>&1 echo >> $LogFile 2>&1 if [ -d $OldFirstFile ];then rm -rf $OldFirstFile >> $LogFile 2>&1 echo "[ $OldFirstFile ] Delete Old File Success! `date`" >> $LogFile 2>&1 [ ! -d $FirstFile ] && mkdir -pv $FirstFile >> $LogFile 2>&1 cd $DATAPath for File in $DirFile; do cp -a ${File} $FirstFile >> $LogFile 2>&1 if [ $? -eq 0 ];then echo "[ ${DATAPath}${File} ] Backup Success! `date`" >> $LogFile 2>&1 fi done else if [ ! -d $FirstFile ];then mkdir -pv $FirstFile >> $LogFile 2>&1 cd $DATAPath for File in $DirFile; do cp -a ${File} $FirstFile >> $LogFile 2>&1 if [ $? -eq 0 ];then echo "[ ${DATAPath}${File} ] Backup Success! `date`" >> $LogFile 2>&1 fi done else echo "[ $DATAPath ]The Backup File is exists,Can‘t Backup! `date`" >> $LogFile 2>&1 fi fi } # 差異備份 DiffBackup() { echo "Today is week: `date +%a`, Start performing differential backups..." echo >> $LogFile 2>&1 echo >> $LogFile 2>&1 if [ -d $OldFirstFile ];then rm -rf $OldFirstFile >> $LogFile 2>&1 echo "[ $OldFirstFile ] Delete Old File Success! `date`" >> $LogFile 2>&1 [ ! -d $FirstFile ] && mkdir -pv $FirstFile >> $LogFile 2>&1 rsync --dry-run -racnC --out-format="%n" $DATAPath $d_dir | grep -v "/$" | xargs -I{} rsync -R -a -z ${DATAPath}/./{} $FirstFile if [ $? -eq 0 ];then echo "[ ${DATAPath}${File} ] Backup Success! `date`" >> $LogFile 2>&1 fi else if [ ! -d $FirstFile ];then mkdir -pv $FirstFile >> $LogFile 2>&1 rsync --dry-run -racnC --out-format="%n" $DATAPath $d_dir | grep -v "/$" | xargs -I{} rsync -R -a -z ${DATAPath}/./{} $FirstFile if [ $? -eq 0 ];then echo "[ ${DATAPath}${File} ] Backup Success! `date`" >> $LogFile 2>&1 fi else echo "[ ${DATAPath} ]The Backup File is exists,Can‘t Backup! `date`" >> $LogFile 2>&1 fi fi } # 日誌的結束部分 end(){ echo >> $LogFile 2>&1 echo >> $LogFile 2>&1 echo "---------------------The backup ends ----------------------" >> $LogFile 2>&1 echo >> $LogFile 2>&1 echo " $DATAPath backup ends $(date +"%y-%m-%d %H:%M:%S")" >> $LogFile 2>&1 echo >> $LogFile 2>&1 echo "---------------------The backup ends ----------------------" >> $LogFile 2>&1 } a=`date +%u` # 定義Today是星期幾 b=7 # 定義多少天循環一次完全備份和差異備份,這裏定義為7點循環一次,如果要增大循環天數,請修改此處 c=5 # 這裏5代表是周五完全備份,如果要改成周六完全備份,請修改為6 d=6 # 定義每周6不備份數據 ago=$[ $a + $b -$c ] # 定義Today離$c有多少天 d_dir=${BackupPath}${Host}_$(date +%Y-%m-%d -d "`echo $ago` days ago")/`basename ${DATAPath}`/ #date +%Y-%m-%d -d "`echo $ago` days ago" # 定義備份策略 if [ "$a" -eq "$c" ]; then Head FullBackup end elif [ "$a" -eq "$d" ]; then Head echo "Today is Saturday 6, according to the backup strategy, today no data backup." >> $LogFile 2>&1 end else Head DiffBackup end fi # 備份完成後發送郵件至指定郵箱 Mail_Group="[email protected]
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完全備份數據和差異備份數據的shell腳本