我们不需要确切地知道一个大规模群体计算系统是如何工作的，也能够建造、使用它，并使之变得更加完美。
We don't need to know exactly how a massive computational collective system works to be able to build one, use it, and make it better.
一个比较不明显的但是无处不在的大规模生产的服务是计算机操作系统。
A less obvious but ubiquitous mass produced service is a computer operating system.
本期对话unix讨论从命令行有效地管理大量计算机的技术，先从少量系统开始，然后扩大规模。
This installment of Speaking UNIX looks at effective techniques to manage gobs of machines from the command line, starting with just a handful of systems and scaling upward.
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