# fex を Homebrew, apt, dnf, Nix でインストール

fex 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:fex
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install fex
```

  証拠: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install fex
```

  証拠: Debian stable package indexes: fex from https://deb.debian.org/debian/dists/stable/non-free/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install fex
```

  証拠: Fedora Rawhide package metadata: fex from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#fex
```

  証拠: nixpkgs package indexes: pkgs/by-name/fe/fex/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:fex
- **パッケージマネージャ:** Homebrew
- **バージョン:** 2.0.0
- **ソース概要:** Powerful field extraction tool
- **ホームページ:** <https://www.semicomplete.com/projects/fex/>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- fex (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: 2.0.0
## プロジェクトの歴史と使われ方

fex is a small command-line field extractor for tokenizing strings and selecting fields with concise delimiter and range syntax.

### プロジェクトの歴史

Jordan Sissel published the official fex project page on May 19, 2010, describing it as flexible token-field extraction and documenting examples for logs, paths, and passwd-style records. The GitHub repository identifies the project as flexible field/token extraction and has been public on GitHub since 2011.

### 採用の歴史

Homebrew packages fex as a stable formula at version 2.0.0. Its official project page directs release downloads to GitHub, making the GitHub repository the practical source and release surface for package maintainers.

### 使われ方

Typical use is pipeline text processing: provide delimiters and field selectors to pull fields from log lines, paths, or colon-separated records. The official docs position it as a concise alternative to repeated cut or awk invocations for selected field extraction.

### パッケージ好きにとっての重要性

fex matters to CLI package users because it sits in the classic Unix text-filter niche: tiny executable, no service state, and a focused syntax that makes package-manager installation convenient for shell pipelines.

### タイムライン

- 2010: Official fex project page published.
- 2011: GitHub repository created.
- 2021: GitHub repository last pushed according to GitHub metadata.
- 2026: Homebrew formula reports stable version 2.0.0.

### Related projects

- The README says fex is related to cut, awk, and ksb's xapply field extraction syntax.

### ソース

- <https://api.github.com/repos/jordansissel/fex>
- <https://formulae.brew.sh/api/formula/fex.json>
- <https://github.com/jordansissel/fex>
- <https://www.semicomplete.com/projects/fex/>


## 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

- Debian apt - fex - 20160919-2: normalized package name match | Debian stable package indexes: fex from https://deb.debian.org/debian/dists/stable/non-free/binary-amd64/Packages.xz | web service for transferring very large files | http://fex.rus.uni-stuttgart.de/
- Debian apt - fex-utils - 20160919-2: normalized package name match | Debian stable package indexes: fex-utils from https://deb.debian.org/debian/dists/stable/non-free/binary-amd64/Packages.xz | web service for transferring very large files (utils) | http://fex.rus.uni-stuttgart.de/
- Nix - fex: normalized package name match | nixpkgs package indexes: pkgs/by-name/fe/fex/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - fex - 20160919-2: normalized package name match | Ubuntu 24.04 LTS package indexes: fex from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | web service for transferring very large files | http://fex.rus.uni-stuttgart.de/
- Ubuntu apt - fex-utils - 20160919-2: normalized package name match | Ubuntu 24.04 LTS package indexes: fex-utils from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | web service for transferring very large files (utils) | http://fex.rus.uni-stuttgart.de/
- dnf - fex - 2.0.0-26.fc45: normalized package name match | Fedora Rawhide package metadata: fex from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Field split/extraction like cut/awk | http://semicomplete.com/projects/fex/


## Combined YAML source

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