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feat:delete some notes #11

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Aug 27, 2024
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Expand Up @@ -7,7 +7,6 @@ comments: true
---



grep "^sql:" yourfile.sql
这个 grep 命令用于查找所有以 "sql:" 开头的行。

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Expand Up @@ -167,6 +167,7 @@ sed 's/World/Universe/g' text.txt
使用grep找出包含或不包含某些特定字符串的行

假设你有一个文本文件sample.txt,内容如下:

```text
apple
orange
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