How to access gvfs mounts from command line?

It is in /run/user/<uid>/gvfs instead of /run/user/<username/login>/gvfs.

Please note that:

<uid> is user id = number

while

<username/login> is a string, human readable user name

Where one to the other is mapped through /etc/passwd or any other nss module (e.g. ldap). The numbers is actually stored on disk while the name is just for humans 🙂