Application of the Patch File
1. Have the Original File: Make sure you have the file that needs to be modified. This is the file you will apply the patch to.
2. Get the Patch File: Obtain the patch file that contains the changes you want to make to the original file. Patch files usually have a .patch extension.
3. Go to the Right Folder: Open the terminal and navigate to the folder where the original file is located.
4. Run the Patch Command: In the terminal, run the below command.
Command :
patch < patchfile
Replace ‘patchfile’ with the name of your patch file.
This command tells the patch program to read the instructions from the patch file and apply those changes to the original file in the same folder.
After running the command, the original file will be modified with the changes from the patch file. That’s it! The patch has been applied to the original file.
How to Run Patch Command in Linux?
Sometimes, you install software by compiling it from source code instead of using package managers like yum or apt-get. When a security fix is available for such software, you can’t just upgrade it like you normally would. Instead, you must download the security patch, apply it to the source code, and then recompile the software.
This article explains how to create and apply the diff and patch commands. A patch file contains the differences between two versions of the same file or source code. It is made using the diff command and applied using the patch command.
Run Patch Command in Linux
- Syntax of running patch command in Linux
- Application of the Patch File
- Options and descriptions for patch command
- Create a Patch File using diff
- Apply Patch File using Patch Command
- Create a Patch From a Source Tree
- Apply Patch File to a Source Code Tree
- Take a Backup before Applying the Patch using -b
- Validate the Patch without Applying (Dry-run Patch File)
- How to Undo/Reverse a Patch