Possible Software to Be Used (Cont.)

CGI (Common Gateway Interface)
It is a standard for running external programs from a World Wide Web HTTP server.

Name:       
#!/bin/bash
echo "Content-type: text/html"
echo ""
echo '<html><head>'
echo '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">'
echo '<title>Environment Variables</title>'
echo '</head><body>'
echo 'Environment Variables:'
echo '<pre>'
/usr/bin/env
echo '</pre>'
echo '</pre></body></html>'

(X)HTML [(eXtensible) HyperText Markup Language]
HTML is a language for giving instructions for its layout on the page and marking a document containing cross-references that indicates its logical structure. XHTML is a stricter and cleaner version of HTML.