文章详细介绍了网站备份的方法，从手动备份到自动化脚本，包括rsync增量备份、md5校验和邮件通知等。
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该文章从基础的手动备份开始讲解，逐步深入优化备份流程。内容包括编写自动化脚本、设置定时任务、使用rsync进行增量备份、通过md5校验文件变更以及配置邮件通知功能。不仅提供实际操作示例，还会详细解释相关命令的配置选项和工作原理，帮助读者全面掌握网站备份技术。
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