# lolcat を Homebrew, apk, apt, dnf, MacPorts, Nix, pacman でインストール

lolcat 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:lolcat
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install lolcat
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install lolcat
```

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

### Linux

- apk (92%):

```sh
sudo apk add lolcat
```

  証拠: Alpine Linux edge package indexes: lolcat from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz

- Debian apt (92%):

```sh
sudo apt install lolcat
```

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

- dnf (92%):

```sh
sudo dnf install lolcat
```

  証拠: Fedora Rawhide package metadata: lolcat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#lolcat
```

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

- pacman (92%):

```sh
sudo pacman -S lolcat
```

  証拠: Arch Linux sync databases: lolcat from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

## パッケージ情報

- **パッケージキー:** brew:lolcat
- **パッケージマネージャ:** Homebrew
- **パッケージマネージャページ:** <https://formulae.brew.sh/formula/lolcat>
- **バージョン:** 100.0.1
- **ソース概要:** Rainbows and unicorns in your console!
- **ホームページ:** <https://github.com/busyloop/lolcat>
- **リポジトリ:** <https://github.com/busyloop/lolcat>
- **上流ドキュメント:** <https://github.com/busyloop/lolcat#readme>
- **ライセンス:** BSD-3-Clause
- **ソースアーカイブ:** <https://github.com/busyloop/lolcat.git>
- **最終更新:** 2026-06-06T17:04:14Z
- **生成日時:** 2026-07-08T18:08:21+00:00

## 実行可能ファイル

- lolcat (cli)
- lolcat (エイリアス)

## 依存関係

- ruby

## インストール挙動

- post-install フック: 未定義
- Bottle: 利用可能 対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## バージョンと鮮度

- ページ生成日: 2026-07-08
- マネージャ版: 100.0.1
- マネージャ更新日: 2026-06-06
- ローカルデータ: OK
- 上流リポジトリ: https://github.com/busyloop/lolcat
- 情報: No cached GitHub release or tag data was available.
## プロジェクトの歴史と使われ方

lolcat is a small Ruby command-line program for coloring terminal output with rainbow ANSI colors. Its upstream description is intentionally playful: 'Rainbows and unicorns!'

### プロジェクトの歴史

The official GitHub repository was created in August 2011. The README is minimal, showing the tool's visual output and installation commands for Linux and macOS rather than presenting a large manual.

The package follows the classic Unix filter pattern: install a small executable and pipe text through it to transform output. Its implementation is Ruby-only, and the repository includes a gemspec and man page alongside the `bin` and `lib` directories.

### 採用の歴史

lolcat has broad package-manager presence for a toy CLI. The supplied package facts list Alpine, Homebrew, Debian, Fedora, MacPorts, Nix, Arch, and Ubuntu packages.

The official repository's star and fork counts show unusually high recognition for such a small utility, reflecting its spread through terminal screenshots, shell demos, and dotfile culture.

### 使われ方

Users typically pipe command output through `lolcat` to add rainbow color, or call `lolcat` directly on text files. The Homebrew package exposes the `lolcat` executable.

Because lolcat is cosmetic and does not manage state, it has no official config file or credentials file location.

### パッケージ好きにとっての重要性

lolcat is package-nerd significant because it is pure terminal whimsy that became a real cross-distro package. It is often installed not because it is necessary, but because it makes pipelines, demos, and shell prompts visibly fun.

### タイムライン

- 2011: Official GitHub repository created.
- 2010s: lolcat spreads across common Unix-like package managers.
- 2024: Official repository activity continues on GitHub.

### Related projects

- lolcat is related to ANSI terminal color filters and shell-demo utilities, and is commonly combined with ordinary Unix commands through pipes.

### ソース

- <https://api.github.com/repos/busyloop/lolcat>
- <https://github.com/busyloop/lolcat#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

## ソースデータベース詳細

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** lolcat
- **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

## 他のパッケージマネージャ記録

- Debian apt - lolcat - 100.0.1-4: normalized package name match | Debian stable package indexes: lolcat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | colorful `cat` | https://github.com/busyloop/lolcat
- Nix - lolcat: normalized package name match | nixpkgs package indexes: pkgs/by-name/lo/lolcat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - lolcat - 100.0.1-3: normalized package name match | Ubuntu 24.04 LTS package indexes: lolcat from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | colorful `cat` | https://github.com/busyloop/lolcat
- apk - lolcat - 1.4-r0: normalized package name match | Alpine Linux edge package indexes: lolcat from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz | High-performance implementation of lolcat | https://github.com/jaseg/lolcat/
- dnf - lolcat - 1.5-5.fc44: normalized package name match | Fedora Rawhide package metadata: lolcat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | High-performance implementation of a colorful cat | https://github.com/jaseg/lolcat/
- pacman - lolcat - 100.0.1-5: normalized package name match | Arch Linux sync databases: lolcat from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Okay, no unicorns. But rainbows!! | https://github.com/busyloop/lolcat
- MacPorts - lolcat: normalized package name match | MacPorts ports tree: sysutils/lolcat/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## 関連リンク

- [Source-control packages](https://www.automicvault.com/ja/pkg/source-control-tools/) - Belongs to a source-control command family.
- [Package publisher tools](https://www.automicvault.com/ja/pkg/package-publishers/) - Belongs to a package publishing or registry command family.
- [Terminal utility packages](https://www.automicvault.com/ja/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Language runtime packages](https://www.automicvault.com/ja/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata.
- [ruby](https://www.automicvault.com/ja/pkg/brew/ruby/) - Runtime dependency declared by Homebrew.
- [lolcrab](https://www.automicvault.com/ja/pkg/brew/lolcrab/) - Shares av.db curated category or tags: cli, color, system, terminal, terminal-utilities.
- [hr](https://www.automicvault.com/ja/pkg/brew/hr/) - Shares av.db curated category or tags: cli, system, terminal, terminal-utilities.
- [abduco](https://www.automicvault.com/ja/pkg/brew/abduco/) - Shares av.db curated category or tags: cli, system, terminal.
- [ansiweather](https://www.automicvault.com/ja/pkg/brew/ansiweather/) - Shares av.db curated category or tags: cli, system, terminal.
- [bashish](https://www.automicvault.com/ja/pkg/brew/bashish/) - Shares av.db curated category or tags: cli, system, terminal.
- [bottom](https://www.automicvault.com/ja/pkg/brew/bottom/) - Shares av.db curated category or tags: cli, system, terminal.
- [clifm](https://www.automicvault.com/ja/pkg/brew/clifm/) - Shares av.db curated category or tags: cli, system, terminal.
- [cmatrix](https://www.automicvault.com/ja/pkg/brew/cmatrix/) - Shares av.db curated category or tags: cli, system, terminal.

## Combined YAML source

View the package source record on GitHub. [combined/lolcat.yml](https://github.com/automic-vault/db/blob/main/combined/lolcat.yml)


## ソース

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