gistfile1.txt

[/opt/local/etc/macports] sudo port -v clean --all
Can't map the URL 'file://.' to a port description file ("Could not find Portfile in /opt/local/etc/macports").
Please verify that the directory and portfile syntax are correct.
To use the current port, you must be in a port's directory.
(you might also see this message if a pseudo-port such as
outdated or installed expands to no ports).
[/opt/local/etc/macports]