いつもフレームワークの上でしか書いてないので、きちんと理解したい。 CGI Specification http://httpd.apache.org/docs/2.0/en/howto/cgi.html The CGI (Common Gateway Interface) defines a way for a web server to interact with external content-generating programs, which are often referred to as CGI programs or CGI scripts. It is the simplest, and most common, way to put dynamic content on your web site. This document will be an introduct