Unix shell is a successful tool with millions of users, so there isn't a single answer. Here are a few.
(1) If you've been reading the blog for a number of years, you should donate!
(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.