Unix shell is a successful tool with millions of users, so there isn't a single answer. Here are a few.
(1) As of 2022, we have real people to pay. Donations will be converted to working, open-source code!
(2) OSH is the most bash-compatible shell, by a mile. This difficult work is largely done, but I need help making it faster.
(3) Oil is a brand new shell language with Python-like expressions on typed data, Ruby-like blocks, and more. It's designed to be familiar, powerful, and reliable. It can be used for everything shell is used for:
E-mail me at
andy at oilshell dot org if you have a unique reason for
sponsoring! I would love to hear from you.