# eva を Homebrew, apk, MacPorts, Nix, pacman, scoop でインストール

eva 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:eva
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install eva
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install eva
```

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

### Linux

- apk (92%):

```sh
sudo apk add eva
```

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

- Nix (92%):

```sh
nix profile install nixpkgs#eva
```

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

- pacman (92%):

```sh
sudo pacman -S eva
```

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

### Windows

- Scoop (92%):

```sh
scoop install main/eva
```

  証拠: Scoop official bucket manifest trees: bucket/eva.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1

## パッケージ情報

- **パッケージキー:** brew:eva
- **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/eva>
- **バージョン:** 0.3.1
- **ソース概要:** Calculator REPL, similar to bc(1)
- **ホームページ:** <https://github.com/oppiliappan/eva/>
- **リポジトリ:** <https://github.com/oppiliappan/eva>
- **上流ドキュメント:** <https://github.com/oppiliappan/eva/>
- **ライセンス:** MIT
- **ソースアーカイブ:** <https://github.com/oppiliappan/eva/archive/refs/tags/v0.3.1.tar.gz>
- **生成日時:** 2026-08-04T22:13:35+00:00

## 実行可能ファイル

- eva (cli)
- eva (エイリアス)

## ビルド依存関係

- rust

## インストール挙動

- post-install フック: 未定義
- Bottle: 利用可能 対象 arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura

## バージョンと鮮度

- ページ生成日: 2026-08-04
- マネージャ版: 0.3.1
- ローカルデータ: OK
- 上流リポジトリ: https://github.com/oppiliappan/eva
- 検出された最新: v0.3.1 (最新)
- 情報: No package-manager update timestamp was available.
## プロジェクトの歴史と使われ方

eva is a Rust calculator REPL and command-mode calculator similar to `bc(1)`.

### プロジェクトの歴史

The official repository was created in 2019. Its README describes eva as a simple calculator REPL with syntax highlighting and persistent history, and Cargo metadata classifies it under command-line, science, and parser categories.

### 採用の歴史

The official README documents installation through Homebrew, crates.io, and manual source builds. The input package facts list packages for Homebrew, Alpine, MacPorts, Nix, Arch/Pacman, and Scoop.

### 使われ方

eva can be launched as an interactive REPL or passed an expression argument for command mode. It supports arithmetic operators, constants, trigonometric and logarithmic functions, output radix and precision options, previous-answer reuse, syntax highlighting, and persistent REPL history.

### パッケージ好きにとっての重要性

eva is a small terminal calculator in the lineage of `bc`, interesting to package maintainers because it is a Rust CLI distributed through crates.io and several system package managers while keeping a focused single-binary interface.

### タイムライン

- 2019: Official GitHub repository created.
- 2025: Repository metadata shows continued activity.

### Related projects

- bc
- Rust
- crates.io
- Homebrew

### ソース

- GitHub API for oppiliappan/eva repository metadata.
- Official eva Cargo.toml.
- Official eva README.
- Official eva src/main.rs.
- source_facts.package-manager


## セキュリティノート

generalized runtime or code generation signal.

- **Geiger リスク:** yellow / 中
- generalized runtime or code generation signal

## ソースデータベース詳細

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** eva
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## 他のパッケージマネージャ記録

- Nix - eva: normalized package name match | nixpkgs package indexes: pkgs/by-name/ev/eva/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - eva - 0.3.1-r2: normalized package name match | Alpine Linux edge package indexes: eva from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz | Calculator REPL, similar to bc(1) | https://github.com/nerdypepper/eva
- pacman - eva - 0.3.1-3: normalized package name match | Arch Linux sync databases: eva from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | simple calculator REPL, similar to bc(1) | https://github.com/nerdypepper/eva
- MacPorts - eva: normalized package name match | MacPorts ports tree: math/eva/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Scoop - main/eva: normalized package name match | Scoop official bucket manifest trees: bucket/eva.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1


## 関連リンク

- [Source-control packages](https://pkg.so/ja/source-control-tools/) - Belongs to a source-control command family.
- [Secret-risk packages](https://pkg.so/ja/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://pkg.so/ja/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Language runtime packages](https://pkg.so/ja/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata.
- [rust](https://pkg.so/ja/brew/rust/) - Build dependency declared by Homebrew.
- [libqalculate](https://pkg.so/ja/brew/libqalculate/) - Shares pkgdb curated category or tags: calculator, cli, math, science.
- [rink](https://pkg.so/ja/brew/rink/) - Shares pkgdb curated category or tags: calculator, cli, rust, science.
- [spigot](https://pkg.so/ja/brew/spigot/) - Shares pkgdb curated category or tags: calculator, cli, math, science.
- [calc](https://pkg.so/ja/brew/calc/) - Shares pkgdb curated category or tags: calculator, cli, science.
- [gnu-units](https://pkg.so/ja/brew/gnu-units/) - Shares pkgdb curated category or tags: calculator, cli, science.
- [numbat](https://pkg.so/ja/brew/numbat/) - Shares pkgdb curated category or tags: calculator, cli, science.
- [astroterm](https://pkg.so/ja/brew/astroterm/) - Shares pkgdb curated category or tags: cli, science, terminal.
- [ginac](https://pkg.so/ja/brew/ginac/) - Shares pkgdb curated category or tags: cli, math, science.
- [satellite-tracker](https://pkg.so/ja/brew/satellite-tracker/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, rust, science, terminal.
- [chopper](https://pkg.so/ja/brew/chopper/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, rust, science.

## Combined YAML source

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


## ソース

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