How to display the content at the end of a file in Linux

Linux method of displaying the content at the end of a file

In the Linux system, there are many ways to display the content of the file, including displaying the file's content. The beginning, the middle, and the end. This article will focus on how to display the end of a file in a Linux system and provide specific code examples.

Use the tail command to display the content at the end of the file

In the Linux system, use the tail command to display the content at the end of the file. The basic syntax is as follows:

tail [选项] 文件名

Option description

• -n: Specify the number of lines at the end of the file to be displayed, for example -n 10 means to display the last 10 lines
• -f: Continuously display the contents of the file, suitable for viewing log files and other situations that require real-time updates

Example

1. Display The 10 lines of content at the end of the file:

   tail -n 10 filename.txt

2. Continuously display the content of the file:

   tail -f filename.log

Use the cat command combined with the pipe to display the content of the end of the file

In addition to the tail command, you can also use the cat command combined with the pipe symbol | to display the end content of the file. The specific method is as follows:

cat 文件名 | tail -n 10

This method will first use the cat command to output the file content to the standard output, and then pass the result to the tail command through the pipe symbol | for display The content at the end of the file.

Use the sed command to display the content at the end of the file

In addition, you can also use the sed command to display the content at the end of the file. The specific method is as follows:

sed -n '$p' 文件名

where , $p means printing the last line of the file.

Summary

In Linux systems, displaying the end content of a file is a common operation requirement. Use the tail command and the cat command combined with the pipe symbol And sed commands can be easily implemented. Choose the appropriate method to view the content at the end of the file according to the actual situation to improve work efficiency.

I hope the above introduction can help you better understand the method of displaying the content at the end of the file in the Linux system, and master the relevant code examples. If you have any questions or need further information, please feel free to contact us.

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