# Install ddh with Homebrew, MacPorts, Nix Fast duplicate file finder. Version 0.13.0 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:ddh ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install ddh ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install ddh ``` Evidence: MacPorts ports tree: sysutils/ddh/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Nix (92%): ```sh nix profile install nixpkgs#ddh ``` Evidence: nixpkgs package indexes: pkgs/by-name/dd/ddh/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:ddh - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.13.0 - **Source summary:** Fast duplicate file finder - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** LGPL-3.0-only - **Source archive:** - **Generated:** 2026-07-09T07:20:21+00:00 ## Executables - ddh (cli) - ddh (alias) ## Build dependencies - rust ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-07-09 - Package-manager version: 0.13.0 - Local data: ok - Upstream repository: https://github.com/darakian/ddh - Upstream latest detected: 0.13.0 (current) - info: No package-manager update timestamp was available. ## 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 Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** ddh - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Nix - ddh: normalized package name match | nixpkgs package indexes: pkgs/by-name/dd/ddh/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - MacPorts - ddh: normalized package name match | MacPorts ports tree: sysutils/ddh/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [rust](https://www.automicvault.com/pkg/brew/rust/) - Build dependency declared by Homebrew. - [rmlint](https://www.automicvault.com/pkg/brew/rmlint/) - Shares av.db curated category or tags: cli, deduplication, duplicate-files, file-management, system. - [periscope](https://www.automicvault.com/pkg/brew/periscope/) - Shares av.db curated category or tags: cli, deduplication, duplicate-files, file-management, system. - [czkawka](https://www.automicvault.com/pkg/brew/czkawka/) - Shares av.db curated category or tags: cli, duplicate-files, file-management, rust, system. - [duff](https://www.automicvault.com/pkg/brew/duff/) - Shares av.db curated category or tags: cli, deduplication, duplicate-files, system. - [fdupes](https://www.automicvault.com/pkg/brew/fdupes/) - Shares av.db curated category or tags: cli, deduplication, duplicate-files, file-management, system. - [jdupes](https://www.automicvault.com/pkg/brew/jdupes/) - Shares av.db curated category or tags: cli, deduplication, duplicate-files, file-management, system. - [rmrfrs](https://www.automicvault.com/pkg/brew/rmrfrs/) - Shares av.db curated category or tags: cli, file-management, rust, system. - [rnr](https://www.automicvault.com/pkg/brew/rnr/) - Shares av.db curated category or tags: cli, file-management, rust, system. ## Combined YAML source View the package source record on GitHub. [combined/ddh.yml](https://github.com/automic-vault/db/blob/main/combined/ddh.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph