# md5sha1sum を Homebrew, MacPorts でインストール

md5sha1sum 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:md5sha1sum
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install md5sha1sum
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install md5sha1sum
```

  証拠: MacPorts ports tree: sysutils/md5sha1sum/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

## パッケージ情報

- **パッケージキー:** brew:md5sha1sum
- **パッケージマネージャ:** Homebrew
- **バージョン:** 0.9.5
- **ソース概要:** Hash utilities
- **ホームページ:** <http://microbrew.org/tools/md5sha1sum/>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- ripemd160sum (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: 0.9.5
## プロジェクトの歴史と使われ方

md5sha1sum is a small Microbrew toolset providing md5sum, sha1sum, and ripemd160sum replacements. The official page says the tools were intended as compact drop-in replacements for GNU textutils hash utilities, especially for systems such as Solaris where installing all of textutils was excessive.

### プロジェクトの歴史

The official Microbrew page lists releases from 0.9.0 on 2004-07-31 through 0.9.5 on 2006-12-06. It presents the package as a lightweight portability utility for Linux, Solaris 7 through 10, and Mac OS X, with OpenSSL 0.9.6 or newer as its only listed dependency.

The project is distributed from the official homepage as source tarballs rather than through an official source-control repository. That matches its early-2000s package style: a small tarball, README, INSTALL, ChangeLog, and checksums on a simple project page.

### 採用の歴史

The supplied package-manager metadata shows Homebrew and MacPorts packaging md5sha1sum. Its adoption appears narrow but useful on macOS-oriented package managers, where GNU-compatible checksum command names were historically less universal than on GNU/Linux.

Because only the official Microbrew page and package-manager metadata are available here, broader adoption claims should be kept modest.

### 使われ方

The official page describes the tools as drop-in replacements for md5sum, sha1sum, and ripemd160sum. In practice the package is for shell scripts and users that want familiar checksum commands without installing the larger GNU textutils/coreutils set.

Homebrew's recorded executable for this formula is `ripemd160sum`, while the upstream page documents the full md5sum, sha1sum, and ripemd160sum toolset.

### パッケージ好きにとっての重要性

md5sha1sum is a package-nerd artifact from the era when Unix variants differed sharply in which GNU-style checksum tools were present by default. Its purpose was not novelty but portability: providing the familiar hash commands in a tiny OpenSSL-backed package.

The package is also a reminder that package managers preserve small compatibility utilities long after the surrounding platform defaults have changed.

### タイムライン

- 2004-07-31: md5sha1sum 0.9.0 released.
- 2004-08-03: md5sha1sum 0.9.2 released.
- 2006-12-05: md5sha1sum 0.9.4 released.
- 2006-12-06: md5sha1sum 0.9.5 released and listed as latest on the official page.

### Related projects

- The official page positions md5sha1sum as an alternative to GNU textutils hash utilities.
- OpenSSL is listed as the package dependency.

### ソース

- <http://microbrew.org/tools/md5sha1sum>
- <http://microbrew.org/tools/md5sha1sum/ChangeLog>
- <http://microbrew.org/tools/md5sha1sum/INSTALL>
- <http://microbrew.org/tools/md5sha1sum/README>
- source_facts.package-manager


## 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

## 他のパッケージマネージャ記録

- MacPorts - md5sha1sum: normalized package name match | MacPorts ports tree: sysutils/md5sha1sum/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/md5sha1sum.yml](https://github.com/mxcl/pkgdb/blob/main/combined/md5sha1sum.yml)


## ソース

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