/upload.rb

## upload.rb
require 'rubygems'
require 'sinatra'
include FileUtils::Verbose

get '/up' do
  erb :form
end

post '/up' do
  tmpfile  = params[:file][:tempfile]
  filename = params[:file][:filename]
  cp(tmpfile.path, "public/#{filename}")
  "Uploaded #{filename}"
end

__END__

@@form
<html>
  <body>
  <form action="/up" enctype="multipart/form-data" method="POST">
    <input name="file" type="file" />
    <input type="submit" value="Upload" />
  </form>
  </body>
</html>
	require 'rubygems'
	require 'sinatra'
	include FileUtils::Verbose

	get '/up' do
	erb :form
	end

	post '/up' do
	tmpfile = params[:file][:tempfile]
	filename = params[:file][:filename]
	cp(tmpfile.path, "public/#{filename}")
	"Uploaded #{filename}"
	end

	__END__

	@@form
	<html>
	<body>
	<form action="/up" enctype="multipart/form-data" method="POST">
	<input name="file" type="file" />
	<input type="submit" value="Upload" />
	</form>
	</body>
	</html>