PE> You didn't follow the instructions that you quoted. Oh, so To extract a zip file with a single member, use a command like gunzip <foo.zip or gunzip -S .zip foo.zip. To extract zip files with several members, use unzip instead of gunzip.
should be To extract a zip file with a single member, use a command like $ gunzip < foo.zip or $ gunzip -S .zip foo.zip. As the <arrow glued to text at the beginning of a line is treated by the eyeball as part of some <long running example that probably has a matching> but you never know. Or as some groff formatting mess. Anyway please make the arrow more easy to be sure about.