我在哪裡可以找到高級主目錄備份腳本

是否有任何用於 linux 的腳本可以將主目錄和 mysql 數據庫備份在不同的目錄中。我的意思是最好的通用腳本，任何人都可以使用該腳本。

通過備份我的意思是，我只是製作 tar.gz 並複製到單獨的目錄

使用各種不常用但完美的高級命令的東西

如果您正在尋找的只是一個不錯的備份腳本，請查看我的網站，因為我在幾週前寫了一個操作方法。

Bash 備份腳本

編輯：

#!/bin/bash                                                                                                 

##########################                                                                                  
##### Config Section #####                                                                                  
##########################                                                                                  
#Directory to Backup
backupSourceDir="/var/www"

#Directory to backup to
backupDestDir="/var/backups/www/content"

#Time stamp
suffix=$(date +%Y%m%d-%H%M) 

#Prefix Name of backup
backupFileName="content_backup"

#Where to log
logDir="/var/log/backups/"

#If available disk space dips below X number of Gigabytes, Do Not Backup.
diskSizeToMaintain="5" 

#How many days to keep backups. If older than X amount of days, DELETE.
daysToKeepBackups="14"

#Do not keep less than X number of backups.
numBackupsToKeep="10" 


###########################                                                                                 
######## Functions ###########                                                                                 
##########################
function e {
while [ "$1" != "" ]; do
   echo -n "$1"
   echo -n " "
   echo -n "$1" >> $logDir"/"$backupFileName.$suffix.log
   echo -n " "  >> $logDir"/"$backupFileName.$suffix.log
   shift
done
echo
echo >> $logDir"/"$backupFileName.$suffix.log
}

function backupPrep {
   e "Preparing backup..."
   if [ ! -d $logDir ] #Does Log Directory Exist?    
   then
   e "Log directory" $logDir "doesn't exist."
   exit 1
   else
   e "Log Directory Exists..."
   fi

   if [ ! -d $backupSourceDir ] #Does Backup Source Directory Exist?
   then
   e "Source directory" $backupSourceDir "doesn't exist."
   exit 1
   else
   e "Source Directory Exists..."
   fi

   if [ ! -d $backupSourceDir ] #Does Backup Directory Exist?
   then
   e "Destination directory" $backupDestDir "doesn't exist."
   exit 1
   else
   e "Destination directory" $backupDestDir "exists..."
   fi
}

function backupCheck {
       e "Checking disk space..."
   sourceDirSize=$(du -h $backupSourceDir/ | grep $backupSourceDir | tail -1 | awk '{print $'1'}') #Get Source Directory Size
   diskAvail=$(df -h $backupSourceDir | tail -1 | awk '{print $'4'}') #Get Disk Space Available
   a=$(echo $sourceDirSize | sed s/.$//) #Strip G off backup size
   b=$(echo $diskAvail | sed s/.$//) #Strip G off disk size
   diskAfterBackup=$(echo $b - $a | bc) #Is Sourcce Directory Size Larger than Disk Size to Maintain? See config. 
   # See if there is enough disk space available
   comp=$(echo "a=$diskAfterBackup;b=$diskSizeToMaintain;r=0;if(b<=a)r=1;r"|bc)
   e "Comparing disk space to diskSizeToMaintain..."
       if [ $comp -eq 0 ]
   then
   e "Not enough space left on disk or you need to change config section for diskSizeToMaintain"
   e "Disk Size To Maintain:" $diskSizeToMaintain 
   e "Directory Size:" $sourceDirSize 
   e "Disk Size Available:" $diskAvail
   exit 1
    fi    
}
function backupPerform {
   e "Performing backup..."
   cd $backupDestDir #Go to backup Dirctory
   tar hcfP - $backupSourceDir | gzip -c > $backupFileName.$suffix.tar.gz #Perform Backup

   if [ $? != 0 ];
   then
       e "Backup failed! Check the log file by running 'less" $logDir"/"$backupFileName.$suffix.log"'"
       exit 1
   else
           e "Backup has completed..."
   fi
}
function backupVerify {
   e "Verifying backup..."
   if [ -f $backupDestDir/$backupFileName.$suffix.tar.gz ] #Does backup file Exist? If so grab info to display in report.
   then
   destDirSize=$(ls -ltrah $backupDestDir/$backupFileName.$suffix.tar.gz | awk '{print $'5'}' | tail -1)
   e "Backup successful! Backup file" $backupDestDir/$backupFileName.$suffix.tar.gz "was generated and is" $destDirSize 
   diskAfterBackup=$(df -h $backupSourceDir | tail -1 | awk '{print $'4'}')
   else
   e "Backup failed! Backup file" $backupDestDir/$backupFileName.$suffix.tar.gz "didn't get created."
   exit 1
   fi
}
#Delete backups older than daysToKeepBackups
function backupClean {
   e "Checking daysToKeepBackups..."
   if [ $daysToKeepBackups != 0 ]
   then
   e "==============================================================================="
   e "========================== DELETE OLD BACKUPS ================================="
   e "==============================================================================="
   e "Deleting older backups..."
   countTotalBackups=$(find $backupDestDir/ -name $backupFileName\* | wc -l) #Count all backups
   countBackupsToDelete=$(find $backupDestDir/ -name $backupFileName\* -mtime "+"$daysToKeepBackups | wc -l) #Count backups to be deleted based daysToKeepBackups
   countBackups=$(echo $countTotalBackups - $countBackupsToDelete | bc) #countTotalBackups - countBackupsToDelete = countBackups

   if [ $countBackups -ge $numBackupsToKeep  ] 
       then
   e "Backups that will be deleted..."
       find $backupDestDir/ -name $backupFileName\* -mtime "+"$daysToKeepBackups #List backups to be deleted.
       find $backupDestDir/ -name $backupFileName\* -mtime "+"$daysToKeepBackups >> $logDir"/"$backupFileName.$suffix.log
   e "Performing delete..."
       find $backupDestDir/ -name $backupFileName\* -mtime "+"$daysToKeepBackups -exec rm {} \; #Delete backups.                                                                                
   else
       e "Can't delete backups." $numBackupsToKeep "numBackupsToKeep is less than" $countBackups "..."
   fi
   else
   e "0 was specified for daysToKeepBackups in config section. No files deleted."
   fi
}
###########################                                                                                 
######## Script ###########                                                                                 
##########################
e "==============================================================================="
e "=========================== RUNNING BACKUP ===================================="
e "==============================================================================="
startDate=$(date +%Y%m%d-%H:%M:%S) # Time Started                                                           

backupPrep
backupCheck
backupPerform
backupVerify
backupClean

finishDate=$(date +%Y%m%d-%H:%M:%S) # Time Finished                                                         

e "==============================================================================="
e "============================== DETAILS ========================================"
e "==============================================================================="
e "Backup Started:" $startDate
e "Backup Finished:" $finishDate
e "Source Directory:" $backupSourceDir
e "Source Directory Size:" $sourceDirSize
e "Destination Directory:" $backupDestDir
e "Destination File Archive Size:" $destDirSize
e "Backup File Created:" $backupDestDir"/"$backupFileName"."$suffix".tar.gz"
e "Disk Size To Maintain:" $diskSizeToMaintain
e "Disk Size Available:" $diskAfterBackup
e "# Backups to Keep:" $numBackupsToKeep
e "Days to Keep Backups:" $daysToKeepBackups
e "==============================================================================="
e "==============================================================================="
e "==============================================================================="`

引用自：https://serverfault.com/questions/265045