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Oils vs GNU Bash: catalog facts
Oils	GNU Bash
Best for: Shell script authors who want a stricter bash or a more modern shell language	Best for: Shell scripting and everyday interactive use on Unix-like systems
Free Free and open source.	Free Free software from the GNU Project.
macOS, Linux, Command line	macOS, Linux, Command line
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	Runs most existing sh scripts without modification Command-line editing, history and job control All 4 strengths for GNU Bash Runs most existing sh scripts without modification Command-line editing, history and job control Shell functions, aliases and indexed arrays Thorough documentation through info and man pages
Still before a 1.0 release YSH is a new language to learn	Fewer interactive conveniences out of the box than shells like zsh or fish Releases are distributed as source tarballs; most people get it from their system package manager
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Oils oils.pub Catalog checked September 24, 2026	Official website Full listing and sources Sources for GNU Bash gnu.org/software/bash Catalog checked October 1, 2026

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