When we use linux desktop environments, be it ubuntu / fedora, we may need to browse through the file or folder structure and may want a quick command to achieve this need. There are a couple of commands that you can try with these desktop environments.
Option 1: In Ubuntu, you can use the browse command
$ browse .
Option 2: Default file manager in desktop environments
$ xdg-open .
Option 3: GNOME’s file browser terminal Nautilus
$ nautilus .