Linux 定期自动备份脚本

5 八
2011
# 作者: ITwhy / 本文采用CC BY-NC-SA 2.5协议授权，转载请注明本文链接。

我们在网维工作中，常常要备份一些资料，虽然事情不复杂，但是很费时间的，我在这里分享一个 Linux 备份脚本，轻松自如的实现自动备份，并且可以保留N天备份的档案。这个脚本分为两个文件，一个是执行文件backup.sh，另一个是备份项目文件project.lst。

#backup.sh
-- 重要变量名  作用
LogFile	日志文件
SourceDir	需要备份的目录
BakDir	备份至此目录
RetainDay	备份档案文件保留天数
ProjectLst	备份项目文件配置文件

代码：

#!/bin/bash
#author:        InBi
#date:          2011-07-28
#role:          backup files periodically.
#website:       http://www.itwhy.org/2011/07-28/707.html
##################################################
LogFile=/backup/log/`date +"%Y-%m"`.log
DATE=`date +"%Y-%m-%d"`
SourceDir=/var/RDfile
BakDir=/backup
RetainDay=20
ProjectLst=/backup/project.lst
##################################################
echo "backup start at $(date +"%Y-%m-%d %H:%M:%S")" > $LogFile
echo "--------------------------------------------------" >> $LogFile
cd $BakDir
PROJECTLIST=`cat $ProjectLst`
for Project in $PROJECTLIST
do
	ProjectData=$SourceDir/$Project
	DestDir=$BakDir/$Project
	PackFile=$DATE.$Project.tgz
	if [ -f $BakDir/$PackFile ]
	then
		echo "backup file have exist !" >>$LogFile
	else
		cp -RHpf $ProjectData $DestDir > /dev/null
		tar -zcvf $PackFile $Project > /dev/null
		echo "backup $Project done into $PackFile ">>$LogFile
		rm -rf $Project
	fi
	OldFile="$BakDir/"$(date --date="$RetainDay days ago" +"%Y-%m-%d").$Project.tgz
	if [ -f $OldFile ]
	then
		rm -f $OldFile > /dev/null
		echo "[$OldFile],Delete Old File Success!" >> $LogFile
	fi
	echo " " >> $LogFile
done
echo "--------------------------------------------------" >> $LogFile
echo "backup end at $(date +"%Y-%m-%d %H:%M:%S")" >> $LogFile
echo " " >> $LogFile
exit 0

# project.lst : 这个文件比较好理解，就是一个text文件，它的每一行表示一个项目，也就是你需要备份的目录下面的文件或目录。

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8xxx
nms

ITwhy

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  • 作者: ITwhy
  • Post Time: 2011/08/05 8:49:37 上午
  • In: 技巧
  • Tags:

9 Responses to Linux 定期自动备份脚本

Avatar

easthero

Google Chrome 14.0.835.18 Google Chrome 14.0.835.18 Mac OS X 10.7.0 Mac OS X 10.7.0

八月 5th, 2011 at 9:18 上午

何苦，用rsnapshot吧

Avatar

ledmirage

Firefox 5.0 Firefox 5.0 GNU/Linux x64 GNU/Linux x64

八月 5th, 2011 at 9:22 上午

If what you backing up is small in size, mydatabase.sql
7z a -t7z -mx=5 mydatabase.7z mydatabase.sql
nail -s “database backup” -a ./mydatabase.7z [email protected] < /dev/null
rm mydatabase.sql
rm mydatabase.7z

Avatar

ledmirage

Firefox 5.0 Firefox 5.0 GNU/Linux x64 GNU/Linux x64

八月 5th, 2011 at 9:24 上午

seems like some of my comment text is being mistakenly stripped off …
reposting:

If what you backing up is small in size, smaller than 15mb, you can using this simple script to auto back up to gmail (free space), and u can keep it there forever.

i use something like this to backup my database, need 7zip.

#!/bin/bash
mysqldump –user=someone –password=somepassword mydatabase > mydatabase.sql
7z a -t7z -mx=5 mydatabase.7z mydatabase.sql
nail -s “database backup” -a ./mydatabase.7z [email protected] < /dev/null
rm mydatabase.sql
rm mydatabase.7z

Avatar

zhang

Firefox 5.0.1 Firefox 5.0.1 GNU/Linux GNU/Linux

八月 5th, 2011 at 10:59 上午

收藏，比我写的干净多了………

Avatar

gamerh2o

Google Chrome 12.0.742.112 Google Chrome 12.0.742.112 GNU/Linux x64 GNU/Linux x64

八月 5th, 2011 at 1:34 下午

删除旧文件的代码不是很合理，比如说8月1号的旧文件要是脚本由于某些原因没有在8月21号执行，那这个旧文件就永远不会被删除了。还是用find命令好一些。find $Bakdir -type f -mtime +$RetainDay | xargs rm -f

Google Chrome 14.0.835.8 Google Chrome 14.0.835.8 Windows XP Windows XP

ITwhy Reply:
八月 5th, 2011 at 2:33 下午

@gamerh2o,

确实是的，谢谢指导

Google Chrome 14.0.835.8 Google Chrome 14.0.835.8 Windows XP Windows XP

ITwhy Reply:
八月 5th, 2011 at 4:46 下午

@gamerh2o,

已做修改：http://www.itwhy.org/2011/07-28/707.html

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八月 6th, 2011 at 8:05 上午

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peter

Firefox 18.0 Firefox 18.0 Ubuntu x64 Ubuntu x64

一月 27th, 2013 at 3:05 下午

脚本：

!/bin/bash

author: InBi

date: 2011-07-28

role: backup files periodically.

website: http://www.itwhy.org/2011/07-28/707.html

#

LogFile=/home/backup/log/date +"%Y-%m".log
DATE=date +"%Y-%m-%d"
SourceDir=/var/www
BakDir=/home/backup
RetainDay=20
ProjectLst=/home/backup/project.lst

#

echo “backup start at $(date +”%Y-%m-%d %H:%M:%S”)” > $LogFile
echo “————————————————–” >> $LogFile
cd $BakDir
PROJECTLIST=cat $ProjectLst
for Project in $PROJECTLIST
do
ProjectData=$SourceDir/$Project
DestDir=$BakDir/$Project
PackFile=$DATE.$Project.tgz
if [ -f $BakDir/$PackFile ]
then
echo “backup file have exist !” >>$LogFile
else
cp -RHpf $ProjectData $DestDir > /dev/null
tar -zcvf $PackFile $Project > /dev/null
echo “backup $Project done into $PackFile “>>$LogFile
rm -rf $Project
fi
OldFile=”$BakDir/”$(date –date=”$RetainDay days ago” +”%Y-%m-%d”).$Project.tgz
if [ -f $OldFile ]
then
rm -f $OldFile > /dev/null
echo “[$OldFile],Delete Old File Success!” >> $LogFile
fi
echo ” ” >> $LogFile
done
echo “————————————————–” >> $LogFile
echo “backup end at $(date +”%Y-%m-%d %H:%M:%S”)” >> $LogFile
echo ” ” >> $LogFile
exit 0

错误信息：

backup.sh: 14: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 15: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 25: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 25: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 25: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 25: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 25: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 29: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 29: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 29: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 38: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 40: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 41: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent
backup.sh: 42: backup.sh: cannot create /home/backup/log/2013-01.log: Directory nonexistent

求解，谢谢。

Firefox 18.0 Firefox 18.0 Ubuntu x64 Ubuntu x64

peter Reply:
二月 3rd, 2013 at 10:11 上午

@peter, 在home/backup手动创建个log文件夹，就解决了。

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