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Elvish vs Murex: catalog facts
Elvish	Murex
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Readable scripts with lists, maps and functions Catches errors like undefined variables before running	Native handling of JSON, YAML, XML and CSV Error handling and unit tests for scripts
Not POSIX compatible, so Bash scripts do not run unchanged Smaller ecosystem than Bash, Zsh or Fish	Not POSIX compatible, so existing Bash scripts need rewriting Smaller community than Bash, Zsh or Fish
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.