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    --- title: The Art of Unix Programming tags: 读书笔记 --- # The Art of Unix Programming ## 如何阅读一本书的一些问题: - 元认知问题: * 这段/本书在讲什么? * 这段作者为什么这么说? * 这段在整体中处于什么位置? * 这段如何影响后面的内容? * 这段/本书与我已有的知识有什么联系? - 我想回答的问题: 整体来说,这本书在说什么的?作者如何组织各部分材料说明这个主题的? 作者细部说了什么?怎么说的? 这本书有道理吗?作者的想法对吗? 这本书跟我有什么关系?意义? - 分析阅读的规则: 规则1 尽快弄清楚这本书的分类。视检阅读会帮助这个过程。 规则2 使用一个句子或者几个句子叙述整本书的内容。即整体性 规则3 将书中重要的篇章列举出来,写下来他们如何按照顺序组成一个整体框架 规则4 找到作者要问的问题,一个或者多个相关的问题 规则5 找到重要的单字,透过他们与作者达成共识。 规则6 圈出一本书最重要的句子,并且找到他的主旨。 规则7 从相关句子的关联中,构架一本书的基本论述,明白作者的主张。 规则8 发现作者解决了什么问题?那些还没有解决? 规则9 在作出评价或者回应时,确保自己可以肯定的说,我已经明白作者要表达的意思了。 规则10 当你不同意观点时,要理性的表达自己的意见,不要无礼辩驳。 规则11 尊重知识和个人观点的不同,批评前都要找到理论基础。 ## Design ### Modularity **Encapsulation** is the first quanlity, which is achieved by using API to do the comunication. Well-define modules won't expose their internal to each other. How to check if an API is well-designed? Try to use human language to describe the API. So write the description first before code the API. How to control the size of modular? Opt is arount 200-400 logical lines code per modular. and around 400-800 physical lines.

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