# Install has with Homebrew, Nix Checks presence of various command-line tools and their versions on the path. Version 1.5.2 via Homebrew; verified from local package data. Also installable with nix: nix profile install nixpkgs#has. ## Install ```sh sudo av install brew:has ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install has ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#has ``` Evidence: nixpkgs package indexes: pkgs/by-name/ha/has/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:has - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.5.2 - **Source summary:** Checks presence of various command-line tools and their versions on the path - **Homepage:** - **Repository:** - **License:** MIT - **Source archive:** - **Generated:** 2026-08-04T22:13:35+00:00 ## Executables - has (cli) - has (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on all ## Freshness - Page generated: 2026-08-04 - Package-manager version: 1.5.2 - Local data: ok - Upstream repository: https://github.com/kdabir/has - Upstream latest detected: v1.5.2 (current) - info: No package-manager update timestamp was available. ## Project history and usage has is Kiran Dabir's dependency-free Bash utility for checking whether named command-line tools are on `PATH` and reporting their installed versions. ### Project history The official GitHub repository was created in February 2014. The project stayed centered on one portable Bash script while accumulating tool-specific version detection, readable success and failure output, meaningful exit status, and project-local `.hasrc` files. A tagged GitHub release series is visible from v1.2.0 in 2018 through v1.5.2 in August 2025. The README continues to present direct download and execution as first-class options alongside package managers. ### Adoption history has spread through several conventions favored by shell users: direct `curl` execution, a copied script on `PATH`, Git installation, Homebrew, asdf, and mise. Supplied metadata also records Homebrew and Nix packages. ### How it is used Users run commands such as `has node npm java git`; the output lists detected versions, and the exit status counts missing commands. A project can commit one tool name per line in `.hasrc`, letting `has` serve as an immediately readable environment preflight for developers and scripts. ### Why package nerds care has is a strong example of the single-file shell package: no runtime beyond Bash, directly inspectable source, multiple install methods, and behavior useful both interactively and in automation. A committed `.hasrc` also acts as a lightweight executable declaration of a repository's external toolchain. ### Timeline - 2014: The official GitHub repository is created. - 2018: v1.2.0 begins the visible GitHub release series. - 2025: v1.5.2 is released in August. ### Related projects - asdf-has packages has as an asdf plugin. - mise can install has through its version-manager workflow. ### Sources - - - - source_facts.package-manager ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Configuration and credential file locations These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval. ## Configuration files - Unix: ./.hasrc ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** has - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - has: normalized package name match | nixpkgs package indexes: pkgs/by-name/ha/has/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://pkg.so/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://pkg.so/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://pkg.so/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://pkg.so/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [shellcheck](https://pkg.so/brew/shellcheck/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [shfmt](https://pkg.so/brew/shfmt/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [sheldon](https://pkg.so/brew/sheldon/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [bash-language-server](https://pkg.so/brew/bash-language-server/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [mcfly](https://pkg.so/brew/mcfly/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [zx](https://pkg.so/brew/zx/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [beautysh](https://pkg.so/brew/beautysh/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [jump](https://pkg.so/brew/jump/) - Shares pkgdb curated category or tags: bash, cli, developer-tools, shell. - [argc](https://pkg.so/brew/argc/) - Local package facts share a topical domain. Shared terms: bash, cli, developer, developer-tools, line. - [bat-extras](https://pkg.so/brew/bat-extras/) - Local package facts share a topical domain. Shared terms: bash, cli, command-line, developer, developer-tools. - [scalaenv](https://pkg.so/brew/scalaenv/) - Local package facts share a topical domain. Shared terms: cli, command-line, developer, developer-tools, environment. ## Combined YAML source View the package source record on GitHub. [combined/has.yml](https://github.com/mxcl/pkgdb/blob/main/combined/has.yml) ## Sources - pkg.so package database - Geiger risk classifier - package-page enrichment - curated configuration and credential file locations - curated package history - package version freshness - pkgdb category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph