Unknown option: "-3" Unix manual page for CURLOPT_FTP_FILEMETHOD. (host=minya system=Darwin)
CURLOPT_FTP_FILEMETHOD(3)  curl_easy_setopt options  CURLOPT_FTP_FILEMETHOD(3)

NAME
       CURLOPT_FTP_FILEMETHOD - select directory traversing method for FTP

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_FILEMETHOD,
                                 long method);

DESCRIPTION
       Pass  a  long  telling libcurl which method to use to reach a file on a
       FTP(S) server.

       This option exists because some server implementations aren't compliant
       to what the standards say should work.

       The argument should be one of the following alternatives:

       CURLFTPMETHOD_MULTICWD
              libcurl  does  a  single CWD operation for each path part in the
              given URL. For deep hierarchies this means many  commands.  This
              is  how  RFC1738 says it should be done. This is the default but
              the slowest behavior.

       CURLFTPMETHOD_NOCWD
              libcurl does no CWD at all. libcurl will do SIZE, RETR, STOR etc
              and  give a full path to the server for all these commands. This
              is the fastest behavior.

       CURLFTPMETHOD_SINGLECWD
              libcurl does one CWD with the full  target  directory  and  then
              operates  on  the  file  "normally" (like in the multicwd case).
              This is somewhat more standards compliant than 'nocwd' but with-
              out the full penalty of 'multicwd'.

DEFAULT
       CURLFTPMETHOD_MULTICWD

PROTOCOLS
       FTP

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.15.1

RETURN VALUE
       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLOPT_DIRLISTONLY(3), CURLOPT_FTP_SKIP_PASV_IP(3),

libcurl 7.54.0                 February 09, 2016     CURLOPT_FTP_FILEMETHOD(3)