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rush vs GNU Parallel: catalog facts
rush	GNU Parallel
Free Free and open source under the MIT license.	Free Free and open source under the GPLv3.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Runs jobs concurrently with timeouts and retries Can resume multi-line commands	Runs many jobs at once across multiple cores Can spread work across several machines
Requires comfort with shell commands and command-line workflows	Command-line only, with many options to learn Aimed at Unix-like systems; no Windows version listed
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 23, 2026

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