利用shell脚本去备份所指定的数据库

Posted 2022-02-11

#! /bin/bash logintool=/home/yx/server/mysql/mysql/bin/mysql dumptool=/home/yx/server/mysql/mysql/bin/mysqldump username=root passwd=`cat /home/yx/stt/shellmysql/dumpsql/.passwd` socketfile=/var/run/mysqld/mysqld.sock storepath=/home/yx/backup/hnf_file now=`date +%Y%m%d%H%M%S` password=$passwd stty erase ‘^H‘ read -p "请输入库名：" dbname if [[ -z $dbname ]];then echo -e "你输出的库名为空，请输入库名！\n" exit 100 else dbcheck=`$logintool -u $username -p$password -e "show databases;" 2>/dev/null | grep -w "$dbname"` if [[ -z $dbcheck ]];then echo -e "你要导出的库不存在！请重新输入正确的dbname！\n" exit 100 fi fi $dumptool -u $username -p$password -S $socketfile --set-gtid-purged=off $dbname > $storepath/$dbname-$now.sql echo -e "$dbname库 已经备份完毕!\n" echo "保存路径为：$storepath/$dbname-$now.sql"``

然后执行这个脚本，会提示你输入想要备份的数据库

这样就比用正常的命令备份方便了很多，也不用每次输入密码和端口号了