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POSIX Is Not a Shell

https://alganet.github.io/blog/2026-06-28-12-POSIX-Is-Not-A-Shell.html
30•gaigalas•3h ago

Comments

echoangle•1h ago
Pretty bad argument. If it’s not defined by POSIX, it’s not POSIX compatible if you rely on a specific behavior.

If you only use defined behavior and it works, it is compatible.

It’s like saying C99 isn’t a compiler. True, but you can still write C99 code, right?

smitty1e•1h ago
> C99 isn’t a compiler.

Sure, but the pojt here is that if we say "Write in X" we generally understand it to mean "Treat X like a standard and don't get too colloquial with the stylings."

Pedantry is worthwhile, but it can be a diminishing returns game.

Muhammad523•1h ago
This post is nice: the writer first explains a problem, using a simple example. In the next section, they reflect a bit about the problem, and then they casually mention two tools they built. In my opinion, this is amazing: you sponsor you project, while also making the problem it solves clear: use their tool to test how portable your code is
jmclnx•48m ago
Will not build without docker, so I am out of luck. This tells me this is not portable, even to some Linuxes.
sdovan1•23m ago
If your environment is POSIX, testing scripts with tool written in POSIX shell, like shellspec[1], might also be a choice.

[1] https://shellspec.info/

GLM 5.2 beats Claude in our benchmarks

https://semgrep.dev/blog/2026/we-have-mythos-at-home-glm-52-beats-claude-in-our-cyber-benchmarks/
350•jms703•6h ago•162 comments

Xonaly – Canada's Independent Search Engine

https://xonaly.com/
38•backlit4034•1h ago•18 comments

A QNX-inspired operating system with selectable kernels

https://qsoe.net
22•edvinbesic•1h ago•2 comments

Historical memory prices 1960-2026

https://dam.stanford.edu/memory-prices.html
129•vga1•5h ago•46 comments

5k menus from the New York Public Library’s Buttolph Collection (1880-1920)

https://pudding.cool/2026/06/menu-story/
312•xbryanx•9h ago•83 comments

Knowledge Distillation of Black-Box Large Language Models

https://arxiv.org/abs/2401.07013
23•babelfish•1h ago•11 comments

Professor denounces mass AI fraud on an exam at Brown

https://english.elpais.com/education/2026-06-28/ai-fraud-at-brown-university-academic-integrity-i...
178•geox•7h ago•237 comments

I used Claude Code to get a second opinion on my MRI

https://antoine.fi/mri-analysis-using-claude-code-opus
312•engmarketer•7h ago•422 comments

TOP500 at ISC’26: We have a New Number 1 Supercomputer

https://chipsandcheese.com/p/top500-at-isc26-we-have-a-new-number
61•rbanffy•4h ago•31 comments

Librepods: AirPods liberated

https://github.com/librepods-org/librepods
249•rbanffy•5h ago•72 comments

The Boeing 747 begins its final descent

https://www.theatlantic.com/magazine/2026/07/boeing-747-retirement/687304/
126•dbl000•3d ago•156 comments

Show HN: Zanagrams

https://zanagrams.com/
156•pompomsheep•8h ago•47 comments

Cigarettes

https://funnelfiasco.com/blog/2026/06/28/on-cigarettes/
6•aendruk•1h ago•0 comments

Working around dragons with the Lemote Yeeloong laptop and OpenBSD

http://oldvcr.blogspot.com/2026/06/working-around-dragons-with-lemote.html
89•zdw•7h ago•17 comments

The food science behind designing an ice cream

https://altermag.com/articles/designing-a-summer-ice-cream-for-india
16•trojanalert•2d ago•5 comments

POSIX Is Not a Shell

https://alganet.github.io/blog/2026-06-28-12-POSIX-Is-Not-A-Shell.html
30•gaigalas•3h ago•5 comments

Show HN: Bash4LLM+ – A lightweight, dependency-free Bash wrapper for LLM APIs

https://github.com/kamaludu/bash4llm/
30•kamaludu•4h ago•15 comments

Daisugi, the Japanese technique of growing trees out of other trees (2020)

https://www.openculture.com/2020/10/daisugi.html
99•MaysonL•7h ago•33 comments

Show HN: NanoEuler – GPT-2 scale model in pure C/CUDA from scratch

https://github.com/JustVugg/nanoeuler
35•vforno•4h ago•8 comments

Tokenmaxxing is dead, long live tokenmaxxing

https://12gramsofcarbon.com/p/agentics-tech-things-tokenmaxxing
105•theahura•7h ago•124 comments

Show HN: DRM-Free Books

https://frequal.com/Perspectives/DrmFreeAuthors.html
61•TeaVMFan•7h ago•30 comments

British Origami: the 1955 exhibition by Akira Yoshizawa (2005)

https://www.britishorigami.org/cp-lister-list/the-1955-exhibition-by-akira-yoshizawa/
17•dang•5h ago•1 comments

Examining circuit boards from the Space Shuttle's I/O Processor

https://www.righto.com/2026/06/space-shuttle-io-processor-boards.html
82•pwg•7h ago•15 comments

Model Training as Code

https://aleph-alpha.com/en/blog/model-training-as-code/
11•peterBlue75•3d ago•0 comments

A way to exclude sensitive files issue still open for OpenAI Codex

https://github.com/openai/codex/issues/2847
172•pikseladam•11h ago•118 comments

The curious case of the disappearing Polish S (2015)

https://aresluna.org/the-curious-case-of-the-disappearing-polish-s/
200•colinprince•11h ago•68 comments

The cost YAGNI was never about

https://newsletter.kentbeck.com/p/the-cost-yagni-was-never-about
92•kiyanwang•5h ago•65 comments

Computer-Aided Language Development in Nonspeaking Children (1968) [pdf]

https://archive.org/details/colby1968-computer-aided-language-development-in-non-speaking-children
22•dang•5h ago•1 comments

The KIDS Act would require age checks to get online

https://www.eff.org/deeplinks/2026/06/kids-act-would-require-age-checks-get-online
274•bilsbie•12h ago•247 comments

The MUMPS 76 Primer – anniversary edition

https://github.com/rochus-keller/MUMPS/blob/main/docs/MUMPS_Primer.adoc
65•Rochus•11h ago•34 comments