Syntax of running patch command in Linux
The Linux patch command is used to apply changes to files. You need the original patch files to run the patch. Here is the basic syntax.
Command :
patch [options] originalfile patchfile
- patch: This is the command itself.
- [options]: These are extra instructions you can give, but you don’t need to use them.
- originalfile: This is the name of the file you want to change.
- patchfile: This is the name of the file that has the changes listed.
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