Linux tee command usage analysis and example demonstration

Title: In-depth exploration of the Linux tee command: Usage analysis and example demonstration

In the Linux system, the tee command is a powerful and commonly used command. Its function is to read data from the standard input and simultaneously Output data to standard output and one or more files. Using the tee command, users can easily view the output of the command and save it to a file. This article will delve into the usage of the Linux tee command and demonstrate its practical application through specific code examples.

Basic syntax of tee command

The basic syntax of tee command is as follows:

tee [OPTION]... [FILE]...

tee Common options for the command include:

• -a, --append: Append content to the file instead of overwriting
• -i, --ignore -interrupts: Ignore interrupt signals
• -p: Output data to standard output and files simultaneously

Example demonstration of tee command

Example 1: Save the command output to a file

Suppose we have a simple command ls -l to list the files and folders in the current directory, we can Use the tee command to save the output of this command to a file. The sample code is as follows:

ls -l | tee output.txt

With this command, the output of ls -l will be displayed on the screen at the same time and saved to output. txt file.

Example 2: Output to multiple files at the same time

If you want to save the command output to multiple files at the same time, you can follow the tee command with multiple file names. The sample code is as follows:

echo "Hello, World!" | tee file1.txt file2.txt

With this command, "Hello, World!" will be saved to file1.txt and file2. txt files in two files.

Example 3: Append content to the file

Sometimes we want to append the command output to the end of the file instead of overwriting the original content. You can use the -a option. The sample code is as follows:

echo "New content" | tee -a file.txt

With this command, "New content" will be appended to the end of the file.txt file.

Conclusion

Through the above examples, we have an in-depth understanding of the basic usage and options of the Linux tee command, and how to demonstrate its practical application through specific code examples. In actual work and study, the tee command is a very practical tool that can help us process command output more conveniently. I hope this article is helpful to you, thank you for reading!

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