What i really want is a `mkdir --cd` - annoying to code without shadowing real mkdir though.

I have a shell function "md" that does a "mkdir -p" and then cds into it. In fish:

    function md
      if test -z "$argv"
        echo "md: Must supply an argument: The directory to create+cd into"
        return 1
      end
      mkdir -p "$argv"
      cd "$argv"
    end

This works in sh, bash, zsh, etc:

  mkdircd() { mkdir -p "$1" && cd "$1" }

  mkdircd /tmp/new/directory/at/arbitrary/depth

it's weird how most IDE's already figured out people want this. I can type in "New File" > "/foo/bar/baz" and it will work just fine. Is there any limitation as to why mkdir can't support recursive generation?