mysql完全备份，增量备份及恢复脚本_MySQL

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刚进入公司时，领导分配的实验任务，这是我写的第一个比较完整和满意的mysql全备，増备及恢复脚本，欢迎指点！

代码如下！

#!/bin/bash# full && increment backup and recover# 说明：事先要确保存在/data/bak目录，且要保证在执行增量备份时已做过至少一次全量备份，否则找不到position文件。port='3306'back_src_dir="/data/mysql/${port}/logs/binlog"back_dir='/data/bak'DATE=`date +%Y%m%d`user='root'pass='cy2009'bak_db='test1'mysql_bin='/usr/local/mysql-5.1.48/bin'socket="/data/mysql/${port}/mysql.sock"full_bak(){cd ${back_dir}DumpFile=Full_back$DATE.sql${mysql_bin}/mysqldump --lock-all-tables --flush-logs --master-data=2 -u${user} -p${pass} ${bak_db} > ${DumpFile}${mysql_bin}/mysql -u${user} -p${pass} --socket=${socket} -e "unlock tables"#把当前的binlog和position信息存入position文件cat ${DumpFile} |grep 'MASTER_LOG_FILE'|awk -F"'" '{print $2}' > ${back_dir}/positioncat ${DumpFile} |grep 'MASTER_LOG_FILE'|awk -F"=" '{print $3}' |awk -F";" '{print $1}' >> ${back_dir}/position}incre_bak(){#锁定表，刷新log${mysql_bin}/mysql -u${user} -p${pass} --socket=${socket} -e "flush tables with read lock"${mysql_bin}/mysqladmin -u${user} -p${pass} --socket=${socket} flush-logs#获取上次备份完成时的binlog和positioncd ${back_dir}start_binlog=`sed -n '1p' position`start_pos=`sed -n '2p' position`#获取目前的binlog和positionmysql -u${user} -p${pass} --socket=${socket} -e "show master status/G" | awk '{print $2}'| sed -n '2,3p' > now_positionstop_binlog=`sed -n '1p' now_position`stop_pos=`sed -n '2p' now_position`#如果在同一个binlog中if [ "${start_binlog}" == "${stop_binlog}" ]; then${mysql_bin}/mysqlbinlog --start-position=${start_pos} --stop-position=${stop_pos} ${back_src_dir}/${start_binlog} >> Incr_back$DATE.sql #跨binlog备份elsestartline=`awk "/${start_binlog}/{print NR}" ${back_src_dir}/mysql-bin.index`stopline=`wc -l ${back_src_dir}/mysql-bin.index |awk '{print $1}'`for i in `seq ${startline} ${stopline}`dobinlog=`sed -n "$i"p ${back_src_dir}/mysql-bin.index |sed 's/.*////g'`case "${binlog}" in"${start_binlog}")${mysql_bin}/mysqlbinlog --start-position=${start_pos} ${back_src_dir}/${binlog} >> Incr_back$DATE.sql;;"${stop_binlog}")${mysql_bin}/mysqlbinlog --stop-position=${stop_pos} ${back_src_dir}/${binlog} >> Incr_back$DATE.sql;;*)${mysql_bin}/mysqlbinlog ${back_src_dir}/${binlog} >> Incr_back$DATE.sql;; esacdonefi#解除表锁定，并保存目前的binlog和position信息到position文件。${mysql_bin}/mysql -u${user} -p${pass} --socket=${socket} -e "unlock tables"cp now_position position}full_recov(){cd ${back_dir}recov_file1=`ls | grep 'Full_back'`${mysql_bin}/mysql -u${user} -p${pass} --socket=${socket} -e "use ${bak_db}; source ${back_dir}/${recov_file1};"}incre_recov(){ cd ${back_dir}recov_file2=`ls |grep 'Incr_back'` ${mysql_bin}/mysql -u${user} -p${pass} --socket=${socket} -e "use ${bak_db}; source ${back_dir}/${recov_file2};"}while truedoecho -e "/t/t**************************************"echoecho -e "/t/t/tWelcome to backup program!"echoecho -e "/t/t/t(1) Full Backup For MySQL"echo -e "/t/t/t(2) Increment Backup For MySQL"echo -e "/t/t/t(3) Recover From The Full Backup File"echo -e "/t/t/t(4) Recover From The Increment Backup File"echo -e "/t/t/t(5) Exit The Program!"echo echo -e "/t/t**************************************"read -p "Enter your choice:" choicecase $choice in1)echo "now! let's backup the data by full method......."full_bakecho "succeed!"sleep 2;;2)echo "now! let's backup the data by increment method......"incre_bakecho "succeed"sleep 2;;3)echo "now! let's recover from the full back file"full_recovecho "successful"sleep 2;;4)echo "now! let's recover from the increment backup file"incre_recovecho "successful"sleep 2;;5)break;;*)echo "Wrong Option! try again!"sleep 2continue;;esacdone

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