install

Additional install commands

macOS

Homebrewverified · 100%

brew install cfv

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install cfv

MacPorts ports tree · security/cfv/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#cfv

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

overview

Package summary

Test and create various files (e.g., .sfv, .csv, .crc., .torrent)

Project links

Commands and aliases

cfv

history

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

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 1 platform targets.
Installs with 1 runtime dependencies.

Recommended review

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

local files

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

Config paths the tool may read or write during local use.

Unix: ~/.cfvrc~/_cfvrc

executables

Installed executables

Command	Kind	Exposure	Note
`cfv`	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 version3.2.0

manager updated

local dataok

upstreamnot checked

latest detectednot detected

https://github.com/cfv-project/cfv

infoNo package-manager update timestamp was available.low confidence
infoNo cached GitHub release or tag data was available.https://github.com/cfv-project/cfvnone confidence

install metadata

Package metadata

Package key	brew:cfv
Version	3.2.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/cfv
Homepage	https://github.com/cfv-project/cfv
Repository	https://github.com/cfv-project/cfv
Upstream docs	https://github.com/cfv-project/cfv/blob/python3/README.md
License	GPL-2.0-or-later
Source archive	https://files.pythonhosted.org/packages/90/e2/4982f414f04c47c5344739ecc6dfd70fe75139d0672e0b080929aea309f9/cfv-3.2.0.tar.gz
Dependencies	python@3.14
Bottle	available (on all)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	cfv
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%

cfv

nix profile install nixpkgs#cfv

normalized package name match
Matched by: Cfv

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

MacPorts95%

cfv

sudo port install cfv

normalized package name match
Matched by: Cfv

MacPorts ports tree · api.github.com · MacPorts ports tree: security/cfv/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/cfv.yml

Used sources

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

Install cfv with Homebrew, MacPorts, Nix