grep工具的工作方式是对文件的每一行搜索给定字符串的首次出现。

The grep utility works by searching through each line of a file (or files) for the first occurrence of a given string.

youdao

正则表达式并不总是完成工作的最佳工具，尤其当你只是搜索一个文本字符串时。

Regexes are not always the best tool for the job, especially when you are merely searching for literal strings.

youdao

正则表达式并不总是完成工作的最佳工具，尤其当你只是搜索一个文本字符串时。

Regexes are not always the best tool for the job, especially when you are merely searching for literal strings.

youdao