curl -u name:passwd ftp://machine.domain:port/full/path/to/file
+ FTPS
+
+ It is just like for FTP, but you may also want to specify and use
+ SSL-specific options for certificates etc.
+
HTTP
The HTTP URL doesn't support user and password in the URL string. Curl
curl -u name:passwd http://machine.domain/full/path/to/file
+ HTTP offers many different methods of authentication and curl supports
+ several: Basic, Digest, NTLM and Negotiate. Without telling which method to
+ use, curl defaults to Basic. You can also ask curl to pick the most secure
+ ones out of the ones that the server accepts for the given URL, by using
+ --anyauth.
+
NOTE! Since HTTP URLs don't support user and password, you can't use that
style when using Curl via a proxy. You _must_ use the -u style fetch
during such circumstances.