How Do I Print a Variable With a Perl CGI?
The Perl CGI (Common Gateway Interface) module is used to process HTTP requests and responses. You can use the Perl CGI module to print variables to a web page. If you use the Perl here-doc operator, "<<", you can embed the variable directly into an HTML document. The here-doc operator allows you to create the HTML document as if creating a pure HTML document. Variables can be placed inside the HTML code and the Perl interpreter will print the value of the variable.
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Instructions
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1
Open a blank document in any text editor.
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2
Type the line
#!/usr/bin/perl
use CGI qw/:standard/;
to start the Perl script and load the standard CGI routines.
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Type the command
my $my_string = "Hello Universe!"
to create a variable that contains the string "Hello Universe!"
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4
Type the command
print <<ENDHTML;
<html>
<body>
<p>$my_string<p>
</body>
<html>
ENDHTML
to print the value of the variable to the web page.
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Save the file with the ".cgi" file extension to indicate that it is a CGI script.
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