最近需要对某服务的数据库数据进行备份,因此参考网上教程完成数据库备份脚本.
因为服务的使用频率较低,因此设置定时任务,在每天的中午以及午夜时分进行备份操作.
#!/bin/bash # 设置mysql的登录用户名和密码(根据实际情况填写) mysql_user="***" mysql_password="****" mysql_host="localhost" mysql_port="3306" mysql_charset="utf8mb4" # 备份文件存放地址(根据实际情况填写) backup_location=/home/app/***/sql_backup # 是否删除过期数据 expire_backup_delete="ON" expire_days=7 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 -B mysql_backup_test> $backup_dir/mysql_backup_test-$backup_time.sql flag=`echo $?` if [ $flag == "0" ];then echo "database mysql_backup_test success backup to $backup_dir/mysql_backup_test-$backup_time.sql.gz" else echo "database mysql_backup_test 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
以上是数据库备份脚本.
编辑定时任务:
crontab -e # 添加定时任务(每天12:50以及23:50执行备份操作) 50 12,23 * * * cd /home/app/jinxd/;sh mysql_backup_test_backup.sh >> log.txt 2>>log.txt
PS:
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来源:https://www.cnblogs.com/jason1990/p/11469708.html