Only download modified pages (-V)

Syntax: -V

This option is only for use in conjunction with the -e (section 0.3.11) option.

When refetching pages with -e gw normally fetches the specified pages unconditionally. This option tells gw to use the ``if modified since'' method of fetching from the webserver so it doesn't have to transfer pages that have not been modified since the last time they were fetched.

This option appeared in version 2.5 release 19980130