The awk command always seems to live in the shadows of Perl, but it can be a quick, useful tool for simple command-line-based data manipulation.

awk命令似乎始终处在Perl的阴影下，但它对于简单、基于命令行的数据处理来说是一个快速、实用的工具。

youdao

I want the function, which is a little tool, a line of code I can include in my own programs and generally those tools live in sections two or three of the manual.

我想要一个函数，那是一个小工具，在我程序中可以包含的一行代码，通常这些工具在手册的第二节，或第三节。

youdao

I want the function, which is a little tool, a line of code I can include in my own programs and generally those tools live in sections two or three of the manual.

我想要一个函数，那是一个小工具，在我程序中可以包含的一行代码,通常这些工具在手册的第二节,或第三节。

哈佛公开课 - 计算机科学课程节选