安装

其他安装命令

macOS

Homebrew已验证 · 100%

brew install numdiff

local Homebrew formula metadata

MacPorts已验证 · 94%

sudo port install numdiff

MacPorts ports tree · science/numdiff/Portfile · 来源: api.github.com

Linux

Debian apt已验证 · 92%

sudo apt install numdiff

Debian stable package indexes · numdiff · 来源: deb.debian.org

Nix已验证 · 92%

nix profile install nixpkgs#numdiff

nixpkgs package indexes · pkgs/by-name/nu/numdiff/package.nix · 来源: api.github.com

概览

软件包摘要

Putative files comparison tool

项目链接

命令和别名

ndselect
numdiff

历史

项目历史与用法

Numdiff is a small, long-lived NonGNU utility by Ivano Primi for comparing files that contain numeric fields. Its reason to exist is simple: ordinary `diff`, `cmp`, and `wdiff` do not know that two textual representations may be numerically equivalent, nor can they ignore numeric changes below a requested tolerance.

项目历史

The official manual for Numdiff 5.9 carries copyrights from 2005 through 2017 and documents a mature Unix-style C program built with the usual `configure`, `make`, and `make install` workflow. The 5.9 manual also notes that older 5.x releases accepted fewer options and that 4.0.0 and 3.x used a different output format, so the package has a real pre-5.x history even though public narrative sources are sparse.

采用历史

Numdiff has modest adoption: it is packaged by Homebrew, Debian/Ubuntu, MacPorts, Nix, and GNU Guix, but it is not a broad ecosystem cornerstone. Homebrew's formula page listed only 43 installs over 365 days on July 1, 2026, which fits the profile of a specialist testing/scientific utility that users reach for when normal diffs are too literal.

使用方式

The practical workflow is comparing generated numeric output line by line and field by field while setting absolute or relative tolerances and accepting equivalent numeric notation. Numdiff also ships `ndselect` for selecting lines and fields, and version 5.9 added a raw output format intended for machine parsing.

为什么软件包爱好者会关心

Numdiff is the classic package-manager long tail: tiny, stable, GPL-licensed, and exactly useful when validating numerical programs whose outputs vary by rounding, notation, platform, compiler, or BLAS implementation. It is most likely to appear in regression-test scripts, scientific-code QA, and packaging test fixtures.

时间线

2005-2017: Years covered by the official manual copyright range.
5.9: Adds compact raw output intended for parsing by other programs.

Related projects

GNU diffutils
wdiff
cmp

来源

安全态势

风险级别：绿色

narrow executable package without higher-risk signals.

风险分类器

绿色风险 · 低置信度 · appliance

原因

narrow executable package without higher-risk signals

信号

metadata:no-higher-risk-signals

安装行为

formula 元数据中未记录 Homebrew post-install 钩子。
Homebrew bottle 元数据适用于 13 个平台目标。
安装时包含 1 个运行时依赖。

建议审查

在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。

可执行文件

已安装的可执行文件

命令	类型	暴露范围	备注
`ndselect`	cli	全局可执行文件
`numdiff`	cli	全局可执行文件

新鲜度

版本和新鲜度

这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。

页面生成时间2026-07-25

管理器版本5.9.0

管理器更新时间

本地数据OK

上游not checked

检测到的最新版本未检测到

https://www.nongnu.org/numdiff

信息No package-manager update timestamp was available.低置信度
信息Release/tag comparison is only available for GitHub repositories.https://www.nongnu.org/numdiffnone 置信度

安装元数据

软件包元数据

软件包键	brew:numdiff
版本	5.9.0
软件包管理器	Homebrew
软件包管理器页面	https://formulae.brew.sh/formula/numdiff
主页	https://www.nongnu.org/numdiff
上游文档	https://www.nongnu.org/numdiff/numdiff.html
许可证	GPL-3.0-or-later
源码归档	https://download.savannah.gnu.org/releases/numdiff/numdiff-5.9.0.tar.gz
依赖	gmp
Bottle	可用 (于 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	未定义
服务	未声明

注册表事实

源数据库详情

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	numdiff
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

源数据库匹配

其他软件包管理器记录

匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。

Debian apt95%

numdiff 5.9.0-2

Compare similar files with numeric fields

https://nongnu.org/numdiff/

sudo apt install numdiff

Section: science
Architecture: amd64
1 依赖
normalized package name match
匹配方式：Numdiff

Debian stable package indexes · deb.debian.org · Debian stable package indexes: numdiff from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

Nix95%

numdiff

nix profile install nixpkgs#numdiff

normalized package name match
匹配方式：Numdiff

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

Ubuntu apt95%

numdiff 5.9.0-1

Compare similar files with numeric fields

http://nongnu.org/numdiff/

sudo apt install numdiff

Section: universe/science
Architecture: amd64
3 依赖
normalized package name match
匹配方式：Numdiff

Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: numdiff from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

MacPorts95%

numdiff

sudo port install numdiff

normalized package name match
匹配方式：Numdiff

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

软件包图谱

链接来自本地软件包关系图、补充数据、依赖边、生态匹配和软件包 hub 归属。

来源线索

由仓库数据生成

此页面由 av-web 从 scripts/generate-pkg-sqlite.py 生成的私有软件包 SQLite 工件提供。

Combined YAML source

View the package source record on GitHub.

combined/numdiff.yml

使用的来源

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

使用 Homebrew, apt, MacPorts, Nix 安装 numdiff