As described earlier, each HTTP transfer starts with curl sending a HTTP request. That request consists of a request line and a number of request headers, and this chapter details how you can modify all of those.
The first line of the request includes the method. When doing a simple GET request as this command line would do:
curl http://example.com/file
…that initial request line would look like this:
GET /file HTTP/1.1
You can tell curl to change the method into something else by using the -X
or --request command-line options followed by the actual method name. You
can, for example, send a DELETE instead like this:
curl http://example.com/file -X DELETE
This command-line option only changes the text in the outgoing request, it
does not change any behavior. This is particularly important if you, for
example, ask curl to send a HEAD with -X, as HEAD is specified to send all the
headers a GET response would get but never send a response body, even if
the headers otherwise imply that one would come. So, adding -X HEAD to a
command line that would otherwise do a GET will cause curl to hang, waiting
for a response body that won't come.
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