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brush vs Oils: catalog facts
brush	Oils
Best for: Bash users curious about a Rust implementation of a familiar shell	Best for: Shell script authors who want a stricter bash or a more modern shell language
Free Free and open source.	Free Free and open source.
Linux, Command line	macOS, Linux, Command line
Bash-compatible syntax, so existing knowledge carries over Written in Rust	OSH runs existing bash scripts with stricter error checking YSH adds structured data and JSON support All 4 strengths for Oils OSH runs existing bash scripts with stricter error checking YSH adds structured data and JSON support Both shells in one small binary Detailed reference documentation
Compatibility with Bash may not be complete Younger and less widely used than Bash	Still before a 1.0 release YSH is a new language to learn
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for brush github.com/reubeno/brush Catalog checked October 2, 2026	Official website Full listing and sources Sources for Oils oils.pub Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.