# liljencrantz/crush

Crush is a command line shell that is also a powerful modern programming language.

Repository: https://github.com/liljencrantz/crush
Canonical: https://ross.abutalabs.com/products/liljencrantz-crush
Language: Rust
License: MIT
License Family: permissive
Last push: 2025-08-17T18:55:03+00:00

## Health v2 (maintenance only)
Score: 49/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 37, release rhythm 35, longevity 100
- inputs: {"age_days": 2530, "days_push": 381, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1886, forks 36 (observed 2026-08-28T04:05:49.077438+00:00)

## What it is
Crush is a command line shell written in Rust that doubles as a modern programming language with a type system, closures, and lexical scoping. Its syntax is designed for both interactive shell usage and batch scripting.

## Use cases
- replace bash with a modern shell
- write shell scripts with closures and a type system
- interactive command line with modern language features
- pipe and manipulate structured data in the shell
- script system automation tasks

## When to choose
- you want a shell with real programming language features like closures and lexical scoping
- you find bash scripting painful and want a modern alternative
- you want one language for both interactive shell use and scripting

## When to avoid
- you need POSIX shell compatibility for existing scripts
- you want a battle-tested shell for production servers
- you rely on zsh/fish plugin ecosystems

## Facets
- artifact type: cli-tool
- maturity: active
- function: cli, interpreter, programming-language, terminal-ui
- domain: programming-languages, developer-tools
- platform: cli, cross-platform
- tags: shell, rust, scripting-language, pipes, structured-data, command-line, linux, macos

## Member repositories
- liljencrantz/crush (main) score 49

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:49.077438+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 2026-08-30T03:13:35.091950+00:00, confidence not recorded.
  - readme: https://github.com/liljencrantz/crush (fetched 2026-08-28T04:05:49.077438+00:00, sha 4c8e3b7a8f01)
- Data as of 2026-08-30T08:39:29.467469+00:00.