#!/bin/bash #数据库IP dbserver='127.0.0.1' #数据库用户名 dbuser='root' #数据密码 dbpasswd='********' #数据库,如有多个库用空格分开 dbname='back01' #备份时间 backtime=`date +%Y%m%d` #备份输出日志路径 logpath='/data/mysqlbak/' echo "################## ${backtime} #############################" echo "开始备份" #日志记录头部 echo "" >> ${logpath}/mysqlback.log echo "-------------------------------------------------" >> ${logpath}/mysqlback.log echo "备份时间为${backtime},备份数据库表 ${dbname} 开始" >> ${logpath}/mysqlback.log #正式备份数据库 for table in $dbname; do source=`mysqldump -h ${dbserver} -u ${dbuser} -p${dbpasswd} ${table} > ${logpath}/${backtime}.sql` 2>> ${logpath}/mysqlback.log; #备份成功以下操作 if [ "$?" == 0 ];then cd $datapath #为节约硬盘空间,将数据库压缩 tar zcf ${table}${backtime}.tar.gz ${backtime}.sql > /dev/null #删除原始文件,只留压缩后文件 rm -f ${datapath}/${backtime}.sql #删除七天前备份,也就是只保存7天内的备份 find $datapath -name "*.tar.gz" -type f -mtime +7 -exec rm -rf {} ; > /dev/null 2>&1 echo "数据库表 ${dbname} 备份成功!!" >> ${logpath}/mysqlback.log else #备份失败则进行以下操作 echo "数据库表 ${dbname} 备份失败!!" >> ${logpath}/mysqlback.log fi done echo "完成备份" echo "################## ${backtime} #############################"