.nu
2 claimants
2 primary
0 secondary
shared primary (2)
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
82.9K
total files
72.5K
first seen 2021–2025 (87.4%)
2023
median year (half its files since)
Case variants in archive: .nu (82.9K), .NU (15), .Nu (4) — aggregated above.
Attribution status
This extension is attributed to Nu; Nushell as primary by 2 authoritative claims.
Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✗ Wikidata · no claim ✗ Wikipedia · no claim
Claimants (2)
Languages that list
.nu among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Nu | linguist | primary |
| Nushell | linguist | primary |
Disambiguation rules (2)
Linguist heuristics that decide, by content, which language a
.nu file actually is.| Rule | Predicts | Kind | Predicates (truncated) | Measured on SWH |
|---|---|---|---|---|
h/linguist/.nu/0 | Nushell | predicates | [{"kind": "any", "regexes": ["^\\s*(import|export|module|def|let|let-env) "]}] | |
h/linguist/.nu/1 | Nu | default | [] |
SWH-mined examples (0)
No archived examples for .nu in our local mirror yet.