this post was submitted on 10 Nov 2025
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Rust Coreutils 0.4 Boosts GNU Compatibility to 85% (linuxiac.com)
submitted 2 days ago by cm0002@futurology.today to c/linux@programming.dev
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The Rust Coreutils project, which aims to provide a full, modern Rust implementation of the GNU Core Utilities — the essential command-line tools found on every Linux and Unix-like operating system — has announced the release of version 0.4.

Notably, the project’s growing maturity has already led to real-world adoption in some Linux distros, such as Ubuntu 25.10 “Questing Quokka” and AerynOS, both of which now utilize Rust Coreutils for select system utilities.

Version 0.4 brings this release a step closer to achieving full GNU Coreutils compatibility. According to devs, the latest test results show 544 passing tests, up from 532 in the previous 0.3 release — an increase that raises total compatibility to 85.8%, while failures dropped from 68 to 56.

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[–] bluGill@fedia.io 11 points 2 days ago

I would expect the last 10% to take 90% of the work though. There are a lot of rough edges that just work weird. There is also a question of what is useful to get from that last 10%, or what should be done different despite being incompatible. (BSD utils are also an option to be compatible with instead)