# SoptikHa2/desed

Debugger for Sed: demystify and debug your sed scripts, from comfort of your terminal.

Repository: https://github.com/SoptikHa2/desed
Canonical: https://ross.abutalabs.com/products/desed
Homepage: https://soptik.tech/articles/building-desed-the-sed-debugger.html
Language: Rust
License: GPL-3.0
License Family: copyleft
Topics: sed, unix, rust, tui-rs
Last push: 2026-05-16T22:05:46+00:00

## Health v2 (maintenance only)
Score: 60/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 82, release rhythm 8, longevity 100
- inputs: {"age_days": 2327, "days_push": 109, "days_rel": 687, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1216, forks 26 (observed 2026-08-28T04:04:01.191565+00:00)

## What it is
Desed is a terminal TUI debugger for GNU sed scripts, written in Rust. It lets users step through sed execution forward and backward, set breakpoints, preview variable values, and hot-reload scripts while editing.

## Use cases
- debug complex sed scripts
- step through sed script execution
- set breakpoints in sed scripts
- understand what a sed substitution does before it runs
- inspect pattern space and hold space while debugging sed
- hot reload sed script while debugging

## When to choose
- you write or maintain nontrivial sed scripts and need an interactive debugger
- you want to understand why a sed one-liner behaves unexpectedly
- you prefer a TUI with vim-like keybindings over sed --debug output

## When to avoid
- you only need simple one-line sed substitutions
- you need a guaranteed-exact debugger, since desed emulates sed to guess the current line
- you need a debugger for awk or other text tools

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: developer-tools, terminal-ui, interpreter
- domain: developer-tools, text-editors
- platform: bsd, cli, cross-platform
- tags: sed, debugger, tui, rust, unix, command-line, linux, macos

## Member repositories
- SoptikHa2/desed (main) score 60

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:01.191565+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 2026-08-30T06:17:10.352379+00:00, confidence not recorded.
  - readme: https://github.com/SoptikHa2/desed (fetched 2026-08-28T04:04:01.191565+00:00, sha 8cdf91b239a5)
  - homepage: https://soptik.tech/articles/building-desed-the-sed-debugger.html (fetched 2026-08-29T12:24:56.397513+00:00, sha 19b2ec44ac17)
  - registry_crates: https://crates.io/api/v1/crates/desed (fetched 2026-08-29T12:24:56.407191+00:00, sha add0c27f4e23)
- Data as of 2026-08-30T08:39:29.467469+00:00.