fish is a smart and user friendly command line shell for UNIX-like
operating systems, written mainly with interactive use in mind.
fish includes features like syntax highlighting, autosuggest-as-you-type,
and fancy tab completions that just work, with no configuration required.

This is the 4.* branch of the fish shell, rewritten from scratch in
Rust, and actively maintained. Some features introduced in fish 4.*
are described in https://fishshell.com/blog/new-in-40/
