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CyC2018 committed Feb 23, 2020
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2 changes: 1 addition & 1 deletion docs/notes/Linux.md
Original file line number Diff line number Diff line change
Expand Up @@ -1039,7 +1039,7 @@ $ grep -n 'the' regular_express.txt
18:google is the best tools for search keyword
```

示例正则表达式 a{m,n} 用来匹配字符 a m\~n 这里需要将 { } 进行转移因为它们在 shell 是有特殊意义的
示例正则表达式 a{m,n} 用来匹配字符 a m\~n 这里需要将 { } 进行转义因为它们在 shell 是有特殊意义的

```html
$ grep -n 'a\{2,5\}' regular_express.txt
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2 changes: 1 addition & 1 deletion notes/Linux.md
Original file line number Diff line number Diff line change
Expand Up @@ -1039,7 +1039,7 @@ $ grep -n 'the' regular_express.txt
18:google is the best tools for search keyword
```

示例正则表达式 a{m,n} 用来匹配字符 a m\~n 这里需要将 { } 进行转移因为它们在 shell 是有特殊意义的
示例正则表达式 a{m,n} 用来匹配字符 a m\~n 这里需要将 { } 进行转义因为它们在 shell 是有特殊意义的

```html
$ grep -n 'a\{2,5\}' regular_express.txt
Expand Down

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