Linuxcpio analysis: in-depth understanding of archive mode

Linuxcpio is a tool for creating, viewing and extracting archive files. It can help users easily backup, restore and transfer files. In Linux systems, cpio can be used in multiple modes, including archive mode, extraction mode, and list mode. In this article, we will mainly gain an in-depth understanding of the archive mode in Linuxcpio, introduce its usage in detail, and provide specific code examples.

1. Introduction to cpio archive mode

In Linux systems, the cpio command can be used to archive files into an archive file so that single or multiple files can be restored when needed. The basic syntax of cpio archive mode is as follows:

cpio -o > archive.cpio

2. cpio archive mode option

• -i: Extract files in the archive
• -o: Create archive file
• -v: Show the process of archiving and extraction
• -d: Create target Copy of directory
• -R: Overwrite the owner and permissions of the file

3. cpio archive mode example

3.1 Create archive File

First, we use the cpio command to create an archive file named archive.cpio, combining file1.txt and file2.txt Add to it:

echo "Hello, file1" > file1.txt
echo "Hello, file2" > file2.txt
echo "Hello, file3" > file3.txt

find . -name "file*.txt" | cpio -o > archive.cpio

3.2 Extracting the archive file

Next, we extract the data in the archive.cpio file we just created:

mkdir extracted_files
cpio -i < archive.cpio -d -v

This will extract the files in archive.cpio to the extracted_files directory.

4. Summary of cpio archive mode

Through the introduction of this article, we have an in-depth understanding of the Linuxcpio archive mode, understand its basic usage and common options, and demonstrate how to use specific code examples Create and extract archive files. In daily work, flexible use of cpio commands can help us manage files and directories more efficiently and improve work efficiency.

I hope this article will help you understand and use the Linuxcpio command, and I also hope that you can further explore more ways to use the cpio command so that it can be better applied in actual work.

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