[pfg_]

fish lets you cd to a folder without 'cd' although you still need the slashes. I use it all the time.

    c $> pwd
    /a/b/c
    c $> dir1
    dir1 $> ..
    c $> ../..
    / $>

[lordgrenville]

zsh also does, with `setopt autocd` https://zsh.sourceforge.io/Intro/intro_16.html