In every HTTP request, there is a method. Sometimes called a verb. The most
commonly used ones are GET, POST, HEAD and PUT.
Normally however you do not specify the method in the command line, but
instead the exact method used depends on the specific options you use. GET
is default, using -d or -F makes it a POST, -I generates a HEAD and
-T sends a PUT.
More about this in the Modify the HTTP request section.