# reubeno/brush

🐚bash/POSIX-compatible shell implemented in Rust 🦀

Repository: https://github.com/reubeno/brush
Canonical: https://ross.abutalabs.com/products/reubeno-brush
Homepage: https://brush.sh
Language: Rust
License: MIT
License Family: permissive
Topics: bash, posix-shell, rust, script, shell
Last push: 2026-08-24T04:55:27+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 82, longevity 60
- inputs: {"age_days": 845, "days_push": 9, "days_rel": 122, "gap_med": 23, "n_releases_24m": 18}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2178, forks 121 (observed 2026-08-28T04:06:22.959393+00:00)

## What it is
brush is a bash- and POSIX-compatible shell implemented in Rust, capable of running existing bash scripts and .bashrc files unchanged. It includes built-in syntax highlighting and auto-suggestions, and can be embedded in Rust applications via brush_core.

## Use cases
- replace bash with a memory-safe shell
- run existing bash scripts unchanged
- interactive shell with syntax highlighting and autosuggestions
- embed a bash-compatible shell in a Rust application
- test shell script compatibility against bash

## When to choose
- you want a Rust-based, memory-safe alternative to bash
- you need high bash/POSIX compatibility for daily interactive use
- you want modern shell UX features without switching to fish/zsh syntax
- you need an embeddable shell interpreter in Rust

## When to avoid
- you rely on bash features like select or obscure edge cases not yet supported
- you need 100% bug-for-bash compatibility in production scripts
- you require zsh or fish specific features

## Facets
- artifact type: cli-tool
- maturity: active
- function: interpreter, cli, developer-tools
- domain: developer-tools
- platform: windows, cross-platform, rust, cli
- tags: shell, bash-compatible, posix-shell, syntax-highlighting, auto-suggestions, embeddable, command-line, automation, linux, macos

## Member repositories
- reubeno/brush (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:22.959393+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:48:49.351289+00:00, confidence not recorded.
  - readme: https://github.com/reubeno/brush (fetched 2026-08-28T04:06:22.959393+00:00, sha 3debbf6416fc)
  - homepage: https://brush.sh (fetched 2026-08-29T10:28:46.166262+00:00, sha f99f9d0aa8af)
  - site_page: https://brush.sh/docs (fetched 2026-08-29T10:28:46.169196+00:00, sha 9e23cf2e9548)
  - site_page: https://brush.sh/how-tos/install (fetched 2026-08-29T10:28:46.171185+00:00, sha e77fc7e7c2ac)
  - registry_crates: https://crates.io/api/v1/crates/brush (fetched 2026-08-29T10:28:46.173249+00:00, sha a111458be7d0)
- Data as of 2026-08-30T08:39:29.467469+00:00.