Mysql学习讲解Linux系统下如何自动备份MySQL数据的基本教程

mkdir backup
cd backup
mkdir mysqlbackup
cd mysqlbackup

vi mysqlautobackup

filename=`date +%Y%m%d`
/mysql的bin目录/mysqldump --opt 数据库名 -u(mysql账号) -p(mysql密码) | gzip > /备份到哪个目录/name$filename.gz

chmod +x autobackup

crontab -e
01 01 * * * /bin/bash /脚本所在目录/mysqlautobackup

/etc/rc.d/init.d/crond restart

#mkdir /mysqldata

mysqldump -uroot -proot test | gzip > /mysqldata/test`date +%Y-%m-%d_%H%M%S`.sql.gz

#chmod +x /usr/sbin/baktest

01 3 * * * root /usr/sbin/baktest

#/etc/rc.d/init.d/crond restart

#!/bin/bash
# Name:qbk全备份脚本
# mysql qbk scripts
# By zxsdw.com
# Last Modify:2015-01-21
#定义脚本存放路径
#scriptsDir=/usr/sbin
#定义用户名及密码
user=root
userPWD=密码
#定义要备份的数据库
database=数据库
#定义完全备份文件存放路径
bakDir=/backup/mysql
#eMailFile=$bakDir/email.txt
#eMail=admin@zxsdw.com
#定义日志文件
LogFile=$bakDir/mysqlbak.log
DATE=`date +%Y%m%d`
echo " " >> $LogFile
echo " " >> $LogFile
echo "--------------------------" >> $LogFile
echo $(date +"%y-%m-%d %H:%M:%S") >>$LogFile
echo "-----------------" >> $LogFile
cd $bakDir
DumpFile=$DATE.sql.gz
mysqldump --flush-logs -u$user -p$userPWD --quick $database| gzip >$DumpFile
echo "Dump Done" >> $LogFile
echo "[$DumpFile]Backup Success!" >> $LogFile
daily_databakDir=$bakDir/daily_backup
cd $bakDir/daily_backup
find $daily_databakDir -name "daily*" -type f -mtime +35 -exec rm {} \; > /dev/null 2>&1

#!/bin/bash
# Name:zbk增量备份
# mysql zbk scripts
# By zxsdw.com
# Last modify:2015-01-21
#定义数据库用户名及密码
user=root
userPWD=密码
#定义数据库
database=数据库
#生成一个新的mysql-bin.00000X文件,如果err日志被清除,则自动新建一个.
/usr/local/mysql/bin/mysqladmin -u$user -p$userPWD flush-logs
#定义增量备份位置
daily_databakDir=/backup/mysql/daily_backup
#定义MYSQL数据日志目录
mysqlDataDir=/usr/local/mysql/var
#定义增量日志及目录
eMailFile=$daily_databakDir/email.txt
#eMail=admin@zxsdw.com
#定义变量DATE格式为20150127
DATE=`date +%Y%m%d`
#定义一个总的logFile日志
logFile=$daily_databakDir/mysql$DATE.log
#美化日志模板
echo "    " > $eMailFile
echo "-----------------------" >> $eMailFile
#时间格式为15-01-27 01:06:17
echo $(date +"%y-%m-%d %H:%M:%S") >> $eMailFile
echo "-------------------------" >> $eMailFile
#定义删除bin日志的时间范围,格式为20150124010540
TIME=$(date "-d 3 day ago" +%Y%m%d%H%M%S)
#定义需要增量备份数据的时间范围,格式为2015-01-26 01:04:11
StartTime=$(date "-d 1 day ago" +"%Y-%m-%d %H:%M:%S")
###########开始删除操作美化日志标题##############
echo "Delete 3 days before the log" >>$eMailFile
#删除三天前的bin文件,及更新index里的索引记录,美化日志标题
mysql -u$user -p$userPWD -e "purge master logs before ${TIME}" && echo "delete 3 days before log" |tee -a $eMailFile
#查找index索引里的bin 2进制文件并赋值给 i.
filename=`cat $mysqlDataDir/mysql-bin.index |awk -F "/" '{print $2}'`
for i in $filename
do
#########开始增量备份操作,美化日志标题###########
echo "$StartTime start backup binlog" >> $eMailFile
#利用mysqlbinlog备份1天前增加的数据,并gzip压缩打包到增量备份目录
/usr/local/mysql/bin/mysqlbinlog -u$user -p$userPWD -d $database --start-datetime="$StartTime" $mysqlDataDir/$i |gzip >> $daily_databakDir/daily$DATE.sql.gz |tee -a $eMailFile
done
#如果以上备份脚本执行成功,接着运行下面的删除脚本
if [ $? = 0 ]
then
# 删除mtime>32的增量日志备份文件
find $daily_databakDir -name "*.log" -type f -mtime +32 -exec rm {} \; > /dev/null 2>&1
cd $daily_databakDir
echo "Daily backup succeed" >> $eMailFile
else
echo "Daily backup fail" >> $eMailFile
#mail -s "MySQL Backup" $eMail < $eMailFile #备份失败之后发送邮件通知
#fi结束IF判断
fi
#把变量eMailFile的内容替换logFile内容
cat $eMailFile > $logFile
#如果上面的IF判断失败,再次运行删除mtime>32的增量日志备份文件
find $daily_databakDir -name "*.log" -type f -mtime +32 -exec rm {} \; > /dev/null 2>&1
rsync -vzrtopg --delete --progress --password-file=/usr/local/rsync/rsync.passwd root@$ip:/zxs/allimg/$(date -d -1day +%y%m%d) /zxs/allimg/
gunzip < /backup/mysql/daily_backup/ceshi.sql.gz | /usr/local/mysql/bin/mysql -u用户名 -p密码 数据库名 --force
--force参数 忽略错误