# Install cfv with Homebrew, MacPorts, Nix

Test and create various files (e.g., .sfv, .csv, .crc., .torrent). Version 3.2.0 via Homebrew; verified from local package data. Also installable with nix: nix profile install nixpkgs#cfv.

## Install

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

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install cfv
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install cfv
```

  Evidence: 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
```

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

## Package facts

- **Package key:** brew:cfv
- **Package manager:** Homebrew
- **Version:** 3.2.0
- **Source summary:** Test and create various files (e.g., .sfv, .csv, .crc., .torrent)
- **Homepage:** <https://github.com/cfv-project/cfv>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- cfv (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 3.2.0
## Project history and usage

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

### Project history

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.

### Adoption history

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.

### How it is used

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.

### Why package nerds care

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.

### Timeline

- 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.

### Sources

- <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>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- 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
## Other Package-Manager Records

- 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)


## Sources

- 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