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This article is about what the patch command is in linux. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

What is the patch command? How to use it?

A: as the name implies, the patch command is used to write changes (or patches) into a text file. The patch command usually receives the output of diff and converts the old version of the file to the new version. For example, the Linux kernel source code consists of millions of lines of code files, so whenever any code contributor contributes the code, just send the changed part instead of the entire source code, and the receiver uses the patch command to write the changes into the original source code. Create a diff file for patch to use

# diff-Naur old_file new_file > diff_file

The old and new files are either individual files or directories that contain files, and the-r parameter supports directory tree recursion. Once the diff file is created, we can patch the old file and turn it into a new one:

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