file format. If you set the file name to a single dash, "-", the cookies will
be written to stdout.
-.B NOTE
+This command line option will activate the cookie engine that makes curl
+record and use cookies. Another way to activate it is to use the \fI-b,
+--cookie\fP option.
+
If the cookie jar can't be created or written to, the whole curl operation
won't fail or even report an error clearly. Using -v will get a warning
displayed, but that is the only visible feedback you get about this possibly