You can also use command line tools such as grep in UNIX.

在 UNIX 中，我们还可以使用诸如 grep 之类的命令行工具。

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Those familiar with the UNIX grep command and its common -v option know how indispensable grep is for extracting relevant lines of text from a file.

熟悉 UNIX grep 命令及其常用 -v 选项的人知道如何将不可缺少的 grep 用于从文件提取相关文本行。

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It can search both text and binary files using either ordinary text or GREP-like regular expressions, based on the standard UNIX search utility.

它可以搜索文本和二进制文件使用普通的文本或grep一样的正则表达式的基础上，标准的Unix搜索工具。

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