Perl – CGI – form submit example

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The following Perl/CGI form example asks a user to enter two integers and upon the submission an addition is performed on both submitted integers.

Note: to handle both integers the “post” method action is set to itself. Meaning that a HTML post method will be created in a following format:

form action="/cgi-bin/perl-cgi-form.cgi" enctype="multipart/form-data" method="post"

Save a following perl-cgi-form.cgi code into /usr/lib/cgi-bin/:

#!/usr/bin/perl -T 
use strict; 
use CGI qw/:standard/; 
print header, 
start_html('Perl/CGI form example'), 
start_form, 
	"Integer 1: ",textfield('num1'), 
	br, 
	"Integer 2: ",textfield('num2'), 
	br, 
	submit, 
end_form, 
hr; 
 
print param('num1')+param('num2'), 
	p, 
	end_html; 
exit;

make it executable:

# chmod 755 /usr/lib/cgi-bin/perl-cgi-form.cgi

by navigating your browser to the above Perl/CGI program you should see a page similar to the one below. Currently the form can handle only integers:

PERL CGI FORM example

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