---
name: "diff2patches"
section: "1"
platform: "linux"
package: "devscripts"
version: "2.25.15+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/diff2patches"
---

# diff2patches(1)

Extract non-debian/ patches from .diff.gz files

## NAME

diff2patches - Extract non-debian/ patches from .diff.gz files

## SYNTAX

**diff2patches** *filename*\
 **diff2patches --help**\|**--version**

## DESCRIPTION

Extracts patches from .diff.gz which apply to files outside the “debian/” directory scope.  A patch is created for each modified file. Each patch is named according to the path of the modified file, with “/” replaced by “\_\_\_”, and an extension of “.patch”.

## OPTIONS

- *filename*

  Extract patches from *filename* which apply outside the “debian/” directory.

- **--help**

  Output help information and exit.

- **--version**

  Output version information and exit.

## FILES

- *debian/control*

  Existence of this file is tested before any patch is extracted.

- *debian/* *debian/patches/*

  Patches are extracted to one of these directories.  “debian/patches/” is preferred, if it exists.  If *DEB\_PATCHES* is present in the environment, it will override this behavior (see “ENVIRONMENT VARIABLES” section below).

## ENVIRONMENT VARIABLES

- **DEB\_PATCHES**

  When defined and points to an existing directory, patches are extracted in that directory and not under “debian/” nor “debian/patches/”.

## SEE ALSO

[**combinediff**(1)](/combinediff/1.md)

## AUTHOR

Raphael Geissert \<atomo64@gmail.com\>