install

Additional install commands

macOS

Homebrewverified · 100%

brew install ddh

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install ddh

MacPorts ports tree · sysutils/ddh/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#ddh

nixpkgs package indexes · pkgs/by-name/dd/ddh/package.nix · source: api.github.com

overview

Package summary

Fast duplicate file finder

Project links

Commands and aliases

ddh

history

Project history and usage

DDH, expanded in its README as Directory Differential hTool, is a Rust duplicate-file finder that traverses directories, hashes files as needed, and reports duplicate and unique file sets.

Project history

The GitHub repository was created in 2018 and the README keeps the project deliberately small: usable as both a Rust library and a standalone CLI. Its official releases show 0.12.0 and 0.13.0 in 2022, which is enough to establish a modest public package history without inventing a broader origin story.

Adoption history

DDH has comparatively narrow adoption compared with older duplicate-file tools, but its availability through Homebrew, MacPorts, and Nix matches the pattern of Rust utilities that package cleanly for users who want a fast single binary.

How it is used

CLI usage centers on selecting directories, choosing duplicate-only or all-file verbosity, and emitting either human-readable standard output or JSON for downstream tools. The README also shows library use through a deduplication API.

Why package nerds care

DDH is interesting as a small Rust package because it combines a filesystem-maintenance job with package-manager-friendly installation and JSON output. Its significance is practical rather than historical: it is the kind of niche utility that becomes useful when installed everywhere through common package managers.

Timeline

2018: Public GitHub repository created.
2022: DDH 0.12.0 released.
2022: DDH 0.13.0 released.

Related projects

ddh-move is named by the README as a downstream consumer of DDH JSON output.
Other duplicate-file finders occupy the same package category, but DDH's official materials emphasize its Rust library and CLI split.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 13 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`ddh`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version0.13.0

manager updated

local dataok

upstreamcurrent

latest detected0.13.0

https://github.com/darakian/ddh

infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package key	brew:ddh
Version	0.13.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/ddh
Homepage	https://github.com/darakian/ddh
Repository	https://github.com/darakian/ddh
Upstream docs	https://github.com/darakian/ddh#readme
License	LGPL-3.0-only
Source archive	https://github.com/darakian/ddh/archive/refs/tags/0.13.0.tar.gz
Build dependencies	rust
Bottle	available (on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	ddh
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

ddh

nix profile install nixpkgs#ddh

normalized package name match
Matched by: Ddh

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/dd/ddh/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

MacPorts95%

ddh

sudo port install ddh

normalized package name match
Matched by: Ddh

MacPorts ports tree · api.github.com · MacPorts ports tree: sysutils/ddh/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/ddh.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install ddh with Homebrew, MacPorts, Nix