一鍵備份單個或多個數據庫（腳本）

一、先創建數據庫，下面是遠程創建數據庫的腳本

#!/bin/bash
MYSQL_DIR=/usr/local/mariadb/bin
 for databases in $*
do
        ${MYSQL_DIR}/mysql -h 192.168.1.21 -u root -p123456 -e "create database ${databases};"
done
echo "查看192.168.1.21機器所有數據庫"
${MYSQL_DIR}/mysql -h 192.168.1.21 -u root -p123456 -e "show databases;"

執行後結果

[root@localhost src]# ./auto_createDB.sh test1 test2 test3 test4 test5
查看192.168.1.21機器所有數據庫
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| test1              |
| test2              |
| test3              |
| test4              |
| test5              |
+--------------------+

二、備份遠程數據庫，單個或多個數據庫

#!/bin/bash
MYSQL_DIR=/usr/local/mariadb/bin
DATE=`date +%Y%m%d%H%M`
if (( $# < 1 ));then
        echo "請輸入要備份的數據庫名"
        exit 1
fi

for database in $*
do
        ${MYSQL_DIR}/mysqldump -h 192.168.1.21 -ubackup -p123456 -B ${database}>${database}${DATE}.sql
        if [ $? -ne 0 ];then
                echo "數據庫${database}備份失敗，請檢查"
                exit 1
        else
                echo "數據庫${database}備份成功！"      
        fi

done

執行結果

[root@localhost src]# ./auto_bakDB.sh test1 test2 test3 test4
數據庫test1備份成功！
數據庫test2備份成功！
數據庫test3備份成功！
數據庫test4備份成功！
[root@localhost src]# ls test*
test1202007041953.sql  test2202007041953.sql  test3202007041953.sql  test4202007041953.sql

注：備份數據時需要添加備份權限，見下

創建備份用戶及授權
>grant select,lock tables on *.* to "backup"@"192.168.1.%" identified by "123456";
>flush privileges;
>select Host,User,Password from mysql.user;

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