Someone already mentioned the official docs. They’re good. I also enjoyed https://jvns.ca/blog/2017/04/23/the-fish-shell-is-awesome/ https://jvns.ca/blog/2017/

Someone already mentioned the official docs. They’re good. I also enjoyed https://jvns.ca/blog/2017/04/23/the-fish-shell-is-awesome/ https://jvns.ca/blog/2017/04/23/the-fish-shell-is-awesome/ which is a nice read though not a tutorial.