mysql备份脚本

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[root@localhost mysql_backup]# cat /data/mysql_backup.sh #!/bin/bash mysql_user="root" mysql_password="G2022rdy" mysql_host="180.33.22.51" mysql_port="3306" mysql_charset="utf8mb4"    # 备份文件存放地址(根据实际情况填写) backup_location=/data/mysql_backup    # 是否删除过期数据 expire_backup_delete="OFF" # 过期时间设置 expire_days=15 backup_time=`date +%Y%m%d%H%M` backup_dir=$backup_location welcome_msg="Welcome to use MySQL backup tools!"    # 判断mysql实例是否正常运行 mysql_ps=`ps -ef |grep mysql |wc -l` mysql_listen=`netstat -an |grep LISTEN |grep $mysql_port|wc -l` if [ [$mysql_ps == 0] -o [$mysql_listen == 0] ]; then         echo "ERROR:MySQL is not running! backup stop!"         exit else         echo $welcome_msg fi    # 备份指定数据库中数据(此处假设数据库是mysql_backup_test) mysqldump -h$mysql_host -P$mysql_port -u$mysql_user -p$mysql_password  --single-transaction --master-data=2 --default-character-set=utf8mb4   --databases  ruoyi_vue_blog_new    > $backup_dir/ruoyi_vue_blog_new-$backup_time.sql flag=`echo $?` if [ $flag == "0" ];then         echo "database   success backup to $backup_dir" else         echo "database   backup fail!" fi    # 删除过期数据 if [ "$expire_backup_delete" == "ON" -a  "$backup_location" != "" ];then         `find $backup_location/ -type f -mtime +$expire_days | xargs rm -rf`         echo "Expired backup data delete complete!" fi