Compare software

tcsh vs yash: catalog facts
tcsh	yash
Best for: Users and admins who work with csh-style shells and scripts	Best for: Users who want a POSIX-compliant shell for portable scripting and daily use
Free Free and open source.	Free Free and open source.
macOS, Linux, Command line	macOS, Linux, Command line
Compatible with the C shell Command-line editing and completion All 3 strengths for tcsh Compatible with the C shell Command-line editing and completion Long-established on Unix systems	Close adherence to the POSIX shell standard Interactive line editing All 3 strengths for yash Close adherence to the POSIX shell standard Interactive line editing Useful for testing portable shell scripts
csh-style syntax differs from bash and other POSIX shells Smaller plugin and configuration ecosystem than zsh	Smaller ecosystem of plugins and configurations than bash or zsh Not a terminal emulator; it runs inside one
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License not stated
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for tcsh github.com/tcsh-org/tcsh Catalog checked October 2, 2026	Official website Full listing and sources Sources for yash github.com/magicant/yash Catalog checked October 2, 2026

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