创建目录

mkdir /server/scripts

一、使用脚本实现分库备份

1、创建脚本并编写
[root@localhost scripts]# vim bak_db_v1.sh +#!/bin/bash
#########################################
# File Name:bak_db_v1.sh
# Version: V1.0
# Author:Shen QL
# Email:17702390000@163.com
# Organization:
# Create Time:2023-07-27 19:21:21
# Description:分库备份
##########################################优化
#备份的路径
bak_path=/backup/db
#账号，密码
mysql_cmd='-uroot -pRedHat@123'
#需要排除的数据库
exclude_db='information_schema|mysql|performance_schema|sys'#检验备份路径是否存在，不存在则创建
[ -d ${bak_path} ] || mkdir -p ${bak_path}#提取需要备份的数据库，并将其写入文件（dbname）中
mysql ${mysql_cmd} -e 'show databases' -N | egrep -v "${exclude_db}" > dbname#循环文件，针对每个库进行备份
while read line
domysqldump ${mysql_cmd} -B $line | gzip > ${bak_path}/${line}_$(date +%F).sql.gz
done < dbname#删除临时文件
rm -f dbname

 结果 

二、使用脚本实现分表备份

#!/bin/bash
#########################################
# File Name:bak_tb_v1.sh
# Version: V1.0
# Author:Shen QL
# Email:17702390000@163.com
# Organization:
# Create Time:2023-07-27 19:21:21
# Description:分表备份
##########################################优化
#备份的路径
bak_path=/backup/db
#账号，密码
mysql_cmd='-uroot -pRedHat@123'
#需要排除的数据库
exclude_db='information_schema|mysql|performance_schema|sys'#提取需要备份的数据表，并将其写入文件（tbname）中
mysql -uroot -pRedHat@123 -N -e'show tables from abc' > tbname
#循环文件，针对每个表进行备份
while read line
do#将数据表放在对应的数据库下面[ -d ${bak_path}/abc ] || mkdir -p ${bak_path}/abcmysqldump ${mysql_cmd} abc $line | gzip > ${bak_path}/abc/abc_${line}_$(date +%F).sql.gz
done < tbname#删除临时文件
rm -f tbname

  结果 

三、使用脚本实现分库分表备份

#!/bin/bash
#########################################
# File Name:bak_tb_v1.sh
# Version: V1.0
# Author:Shen QL
# Email:17702390000@163.com
# Organization:
# Create Time:2023-07-27 19:21:21
# Description:分库分表备份
##########################################优化
#备份的路径
bak_path=/backup/db
#账号，密码
mysql_cmd='-uroot -pRedHat@123'
#需要排除的数据库
exclude_db='information_schema|mysql|performance_schema|sys'#提取需要备份的数据库，并将其写入文件（dbname）中
mysql ${mysql_cmd} -e 'show databases' -N | egrep -v "${exclude_db}" > dbname
while read line
do#循环文件，针对每个库进行备份 [ -d ${bak_path}/$line ] || mkdir -p ${bak_path}/$linemysqldump ${mysql_cmd} -B $line | gzip > ${bak_path}/${line}/${line}_$(date +%F).sql.gz#提取需要备份的数据表，并将其写入文件（tbname）中mysql ${mysql_cmd} -N -e "show tables from $line" > tbname#循环文件，针对每个表进行备份while read tbdo#将数据表放在对应的数据库下面mysqldump ${mysql_cmd} $line $tb | gzip > ${bak_path}/$line/${line}_${tb}_$(date +%F).sql.gzdone < tbname
done < dbname#删除临时文件
rm -f dbname tbname

  结果