updated with more examples

  Yes. Both ways on FTP, download ways on HTTP.

  Try the -c and -C options.

4. Is libcurl thread safe?

  As version seven is slowly marching in as the libcurl version to use, we

   part of a URL, you should qoute the entire URL by using single (') or

   double (") quotes round it.

   An example that would invoke a remote CGI that uses &-letters could be:

   # curl "http://www.altavista.com/cgi-bin/query?text=yes&q=curl"

10. How can I use {, }, [ or ] to specify multiple URLs?

   Because those letters have a special meaning to the shell, and to be used

   in a URL specified to curl you must quote them.

   An example that downloads two URLs (sequentially) would do:

   # curl '{curl,www}.haxx.se'

11. Where can I find a copy of LIBEAY32.DLL?

   That is an OpenSSL binary built for Windows.

   Curl uses OpenSSL to do the SSL stuff. The LIBEAY32.DLL is what curl needs

   on a windows machine to do https://. Check out the curl web page to find

   accurate and up-to-date pointers to recent OpenSSL DDLs and other binary

   respond and that means that headers and a "page" will be returned. That's

   simply how HTTP works.

   By using the --fail option you can tell curl explicitly to not get any data

   if the HTTP return code doesn't say success.

13. Why do I get "HTTP/1.1 403 Forbidden" from a http server?

   RFC2616 clearly explains this return code:

16. How do I keep usernames and passwords secret in Curl command lines?

   I see this problem in two parts:

   I see this problem as two parts:

    The first part is to avoid having clear-text passwords in the command line

   so that they appear in 'ps' outputs and similar. That is easily avoided by

   using the "-K -" contruct that causes curl to read parameters from stdin to

   which you can pass the secret info.

   so that they don't appear in 'ps' outputs and similar. That is easily

   avoided by using the "-K" option that tells curl to read parameters from a

   file or stdin to which you can pass the secret info.

    To keep the passwords in your account secret from the rest of the world is

   not a task that curl addresses. You could of course encrypt them somehow to

19. Can I use curl to delete/rename a file through FTP?

   Yes. You specify custom ftp commands with -Q/--quote.

   One example would be to delete a file after you have downloaded it:

   # curl -O ftp://download.com/coolfile -Q "-DELE coolfile"