# mathiasbynens/evil.sh

:speak_no_evil: Subtle and not-so-subtle shell tweaks that will slowly drive people insane.

Repository: https://github.com/mathiasbynens/evil.sh
Canonical: https://ross.abutalabs.com/products/evilsh
Homepage: https://mths.be/evilsh
Language: Shell
License Family: other
Last push: 2023-04-25T07:05:58+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4645, "days_push": 1226, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2205, forks 212 (observed 2026-08-28T04:06:25.941343+00:00)

## What it is
evil.sh is a collection of subtle and not-so-subtle shell tweaks designed to prank colleagues by slowly driving them insane. It is sourced from a user's .bash_profile and is purely for entertainment purposes.

## Use cases
- prank a colleague's shell environment
- add subtle annoying tweaks to someone's bash profile
- explore creative shell configuration tricks
- have fun with harmless shell trolling

## When to choose
- you want to play a lighthearted prank on a coworker using their shell
- you want a ready-made collection of mischievous bash tweaks
- you need entertainment-value shell scripts that are not immediately destructive

## When to avoid
- you need a serious or productive shell configuration tool
- you cannot tolerate any disruption to your shell environment
- you require a maintained tool with a formal license and active development
- you want obviously destructive or immediately harmful behavior (which this project explicitly rejects)

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: developer-tools, cli
- domain: developer-tools
- platform: cli
- tags: prank, shell-script, bash, trolling, novelty, entertainment, command-line, linux, macos

## Member repositories
- mathiasbynens/evil.sh (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:25.941343+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 2026-08-30T02:46:37.101897+00:00, confidence not recorded.
  - readme: https://github.com/mathiasbynens/evil.sh (fetched 2026-08-28T04:06:25.941343+00:00, sha 5ab6098288da)
  - homepage: https://mths.be/evilsh (fetched 2026-08-29T10:26:51.202815+00:00, sha abe231d1af4d)
- Data as of 2026-08-30T08:39:29.467469+00:00.