FTP Directory listings under TOPS-20

[Charles Hedrick]

It is possible to look around in a TOPS-20 directory hierachy just
as you would on Unix.  However some of the tools to do so are not
going to be available via FTP, and I think some sites may place even
more restrictions on anonymous FTP users.

I don't know any way to find all the legal structures, but if
you know a structure, you can find the directories by doing
  dir <root-directory>
You can find subdirectories under foo by doing
  dir <foo>*.directory