---
name: "slack-diff"
section: "1"
platform: "linux"
package: "slack"
version: "1:0.15.2-11"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/slack-diff"
---

# slack-diff(1)

compare file contents, modes, etc

## NAME

slack-diff - compare file contents, modes, etc

## SYNOPSIS

**slack-diff** \[*OPTION*\]... *FILE1* *FILE2*

## DESCRIPTION

A wrapper for diff that displays file modes and other metadata changes.

- **-u** **-U** NUM **--unified**\[=*NUM*\]

  Tell [**diff**(1)](/diff/1.md) to use unified output format.

- **--diff** *PROG*

  Use this program for diffing, instead of diff.

- **--fakediff**

  Make a fake diff for file modes and other things that are not file contents.  Default is on, can be disabled with --nofakediff.

- **-r** **--recursive**

  Recursively compare any subdirectories found.

- **-N** **--new-file**

  Treat missing files as empty.  Default is on, can be disabled with --nonew-file.

- **--unidirectional-new-file**

  Treat only missing files in the first directory as empty.

- **--from-file**

  Treat arguments as a list of files from which to read filenames to compare, two lines at a time.

- **-0** **--null**

  Use NULLs instead of newlines as the separator in --from-file mode.

- **--devnullhack**

  You have a version of diff that can't deal with -N when not in recursive mode, so we need to feed it /dev/null instead of the missing file.  Default is on, can be disabled with --nodevnullhack.

- **--version**

  Output version info.

- **--help**

  Output this help.

FILES are \`FILE1 FILE2' or \`DIR1 DIR2' or \`DIR FILE...' or \`FILE... DIR'. If **--from-file** or **--to-file** is given, there are no restrictions on FILES. If a FILE is \`-', read standard input.

## SEE ALSO

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