在文件中搜索提取数据

admin 提交于 周五, 05/18/2018 - 09:13

3.2 Searching and Extracting Data from Files

Weight: 3

Description: Search and extract data from files in the home directory.

Key Knowledge Areas:

  • Command line pipes
  • I/O re-direction
  • Basic Regular Expressions ., [  ], *, ?

Terms and Utilities:

  • grep
  • less
  • cat, head, tail
  • sort
  • cut
  • wc

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  • 允许的HTML标签:<a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id> <img src>
  • 自动断行和分段。
  • 网页和电子邮件地址自动转换为链接。
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