# cfv を Homebrew, MacPorts, Nix でインストール

cfv のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:cfv
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install cfv
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install cfv
```

  証拠: MacPorts ports tree: security/cfv/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#cfv
```

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

## パッケージ情報

- **パッケージキー:** brew:cfv
- **パッケージマネージャ:** Homebrew
- **バージョン:** 3.2.0
- **ソース概要:** Test and create various files (e.g., .sfv, .csv, .crc., .torrent)
- **ホームページ:** <https://github.com/cfv-project/cfv>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- cfv (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 3.2.0
## プロジェクトの歴史と使われ方

cfv is a command-line file verification utility for creating and checking checksum files used around archives, releases, and file-sharing workflows.

### プロジェクトの歴史

The maintained cfv project describes itself as a friendly fork of Matthew Mueller's original cfv, maintained by Lisa Gnedt. Its manual page still carries the older utility's shape: a single command for testing and creating many checksum-file formats.

### 採用の歴史

The project documents distribution through PyPI and mentions operating-system packaging paths such as Arch Linux, FreeBSD ports, and NixOS. The input package facts also show package-manager entries for Homebrew, MacPorts, and Nix.

### 使われ方

cfv is used to verify that files match checksum manifests and to create manifests in formats including SFV, CSV, CRC, MD5, SHA-family sums, BLAKE3 b3sum files, BitTorrent metainfo files, and test-only PAR/PAR2 files.

### パッケージ好きにとっての重要性

For package and archive maintainers, cfv is interesting because it covers several checksum dialects in one small CLI, including formats that ordinary coreutils checksum commands do not create or parse.

### タイムライン

- 2005: The cfv man page was dated 05 Feb 2005.
- Python 3 era: The cfv-project fork documents Python >= 3.7 support and points Python 2 users to a separate branch.

### Related projects

- The README compares cfv with GNU coreutils checksum commands, cksfv, RHash, aria2c, bsdsfv, pure-sfv, and bcfv.

### ソース

- <https://api.github.com/repos/cfv-project/cfv>
- <https://github.com/cfv-project/cfv>
- <https://github.com/cfv-project/cfv/blob/python3/README.md>
- <https://github.com/cfv-project/cfv/blob/python3/cfv.1>
- <https://formulae.brew.sh/api/formula/cfv.json>


## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: ~/.cfvrc, ~/_cfvrc
## 他のパッケージマネージャ記録

- Nix - cfv: normalized package name match | nixpkgs package indexes: pkgs/by-name/cf/cfv/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- MacPorts - cfv: normalized package name match | MacPorts ports tree: security/cfv/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/cfv.yml](https://github.com/mxcl/pkgdb/blob/main/combined/cfv.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph