# dylanaraps/pure-bash-bible

📖 A collection of pure bash alternatives to external processes.

Repository: https://github.com/dylanaraps/pure-bash-bible
Canonical: https://ross.abutalabs.com/products/pure-bash-bible
Language: Shell
License: MIT
License Family: permissive
Topics: bash, shell, script, guide, list, bible, book, reference, handbook, learning, how-to, shell-scripts
Archived: true
Last push: 2023-11-28T03:26:23+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3004, "days_push": 1009, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 41723, forks 3640 (observed 2026-08-28T04:12:08.636016+00:00)

## What it is
A reference book of pure bash snippets that replace external process calls using only bash built-ins. It helps script authors remove dependencies and speed up shell scripts.

## Use cases
- replace external commands in bash scripts with built-ins
- learn bash string manipulation techniques
- speed up shell scripts by avoiding subprocesses
- find pure bash alternatives to sed and awk
- reference for writing portable bash scripts
- learn bash parameter expansion tricks

## When to choose
- you write bash scripts and want fewer external dependencies
- you want a tested, linted collection of bash idioms
- you are learning lesser-known bash built-in features

## When to avoid
- you need POSIX sh portability rather than bash
- you need a full bash tutorial rather than a snippet reference
- your scripts target shells other than bash

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools, documentation
- domain: developer-tools, tutorials
- platform: cli
- tags: bash, shell-scripting, reference-book, snippets, posix, command-line, linux, macos

## Member repositories
- dylanaraps/pure-bash-bible (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:08.636016+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 2026-08-29T16:22:56.701501+00:00, confidence not recorded.
  - readme: https://github.com/dylanaraps/pure-bash-bible (fetched 2026-08-28T04:12:08.636016+00:00, sha e86edc1a7436)
- Data as of 2026-08-30T08:39:29.467469+00:00.