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                linux下自動備份mysql(適用版本5.7.28,其它版本未測試) ### 1.配置文件 `my.cnf` ``` [mysql] # 設置mysql客戶端默認字符集 default-character-set=utf8mb4 [mysqld] # 設置3306端口 port =3306 #存放數據的目錄 datadir=/usr/local/mysql/data # 允許最大連接數 max_connections=20 # 服務端使用的字符集默認為8比特編碼的latin1字符集 character-set-server=utf8mb4 collation-server = utf8mb4_unicode_ci # 創建新表時將使用的默認存儲引擎 default-storage-engine=INNODB #認證方式(如果這里不修改,會新版的密碼認證,會連接不了數據庫的,并且要放到mysqld下) default_authentication_plugin = mysql_native_password [mysqldump] user=root password=admin123 ``` ***** ### 2.執行腳本 `mysql_back.sh` ``` #!/bin/bash #備份數據庫 #備份路徑 BACKUPDIR=/usr/share/nginx/databack #當前時間 DATETIME=$(date +%Y-%m-%d_%H%M%S) echo "===備份開始===" echo "備份文件存放在${BACKUPDIR}/$DATETIME.sql" #數據庫地址 #HOST=127.0.0.1 #數據庫用戶 #DBUSER=root #數據庫密碼 #DBPW= #數據庫名 DATABASE=stocks /usr/bin/mysqldump -q -R $DATABASE> ${BACKUPDIR}/$DATABASE$DATETIME.sql echo "===備份成功===" ``` ***** ### 3.刪除備份腳本 `mysql_rm.sh` ``` #!/bin/bash #刪除5天前備份文件 find /usr/share/nginx/databack -ctime +5 -name "stocks*.sql" -exec rm -rf {} \; ```
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