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Common Gateway Interface. In computing, Common Gateway Interface ( CGI) is an interface specification that enables web servers to execute an external program to process HTTP or HTTPS user requests. [1] Such programs are often written in a scripting language and are commonly referred to as CGI scripts, but they may include compiled programs. [2]
For developers, it provides an example of creating a .deb package, either traditionally or using debhelper, and the version of hello used, GNU Hello, serves as an example of writing a GNU program. Variations of the "Hello, World!" program that produce a graphical output (as opposed to text output) have also been shown.
For example, the common <%@ page .. %> directive may instead be written as a <jsp:directive.page .. /> tag, and tag libraries are imported using XML namespaces, instead of the usual <%@ taglib .. %> tag. Compiler. A JavaServer Pages compiler is a program that parses JSPs and transforms them into executable Java Servlets.
curl defaults to displaying the output it retrieves to the standard output specified on the system (usually the terminal window). So running the command above would, on most systems, display the www.example.com source-code in the terminal window. The -o flag can be used to store the output in a file instead: $
A quine is a computer program that takes no input and produces a copy of its own source code as its only output. The standard terms for these programs in the computability theory and computer science literature are "self-replicating programs", "self-reproducing programs", and "self-copying programs". A quine is a fixed point of an execution ...
Simply printing (echoing) user input to the browser without checking it first is something that should be avoided in secure forms processors: if a user entered the JavaScript code < script > alert (1)</ script > into the firstname field, the browser would execute the script on the form_handler.php page, just as if it had been coded by the ...
Static web pages are often HTML documents, [4] stored as files in the file system and made available by the web server over HTTP (nevertheless URLs ending with ".html" are not always static). However, loose interpretations of the term could include web pages stored in a database, and could even include pages formatted using a template and ...
An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes (there are also text nodes, comment nodes and others). [ vague ] The first used version of HTML was written by Tim Berners-Lee in 1993 and there have since been many versions of HTML.