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This article shows you how to use grep query in LINUX to specify the contents of the first and last files, which are concise and easy to understand, which will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

1. Open LINUX, where we can use the UBUNTU operating system.

2. Find the TERMINAL on the left taskbar and open the terminal window.

3. Add ^ after grep to specify the beginning of a line.

4. You can specify the end of a line by adding $after the grep.

5. ^ $can be used at the same time to specify what is necessary at the beginning and end of a line.

6. If a character is missing or incorrect, it will not be queried.

If you use it with-I, you can ignore the rules of case.

8. it can also be used with-v and-I, and can be used flexibly.

The above is how to use grep query in LINUX to specify the contents of the first and last files. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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