Curl to download and upload same file simultaneously

Question

Not sure if it's possible but I've been trying to use curl to essentially download a file from a HTTP location and output it onto an FTP server. I would really like some help if this is in fact possible.

Answer 1

curl http://example.com/down | curl -T - ftp://mysite.org/up

By default curl spits its output to stdout - we then pipe that into another instance of curl.

On the second instance, -T tells curl to upload a file, and the - tells it to take the file data from stdin (rather than from a file on disk).