Yet another shell (yash) is a POSIX-compliant command line shell, featuring more strict POSIX compliance than those of other shells, as well as powerful command line editing.
So far most of yash's features have been implemented. The author is currently writing auxiliary scripts to make command completion more usable.
Yet another shell, version 2.38
This version includes various bug fixes.
The next version of yash will have some breaking changes to improve POSIX-compliance:
Yet another shell バージョン 2.38