Gopher requires GNO (2.0.4, perhaps 2.0.6) and Marinetti (3.0b3).
Usage:
gopher [-o filename] [-O] gopher-url
-o filename: save as filename
-O: save as the remote filename
gopher urls look like:
gopher://server:port/path
where :port is optional. The first character of path is actually
the type code (5 and 9 are binary, others are text).
A blank path is assumed to be a directory listing but could be anything.
