args.cgi

#!/usr/bin/perl
use strict;
use Data::Dumper;
print "Content-Type: text/plain\n\n";
print Dumper(\@ARGV);

request-response

$ curl "localhost/cgi-bin/args.cgi?foo+bar+baz%20baz"                                             [/usr/lib/cgi-bin]
$VAR1 = [
          'foo',
          'bar',
          'baz baz'
        ];