By remote password, I'm guessing your mean http authorization, not some cgi program. Here is a program from the Perl Cookbook

#!/usr/bin/perl
#from lwpcook
use warnings;
use strict;
use LWP::UserAgent;

my $ua = LWP::UserAgent->new;

my $URL = 'http://zentara.net/zentara1.avi';
my $filename = substr( $URL, rindex( $URL, "/" ) + 1 );
#print "$filename\n";
open( IN, ">$filename" ) or die $!;

print "Fetching $URL\n";

my $expected_length;
my $bytes_received = 0;

my $req = HTTP::Request->new(GET => $URL);

my $user = 'zentara';
my $pass = 'foobar';

$req->authorization_basic($user, $pass);

my $res = $ua->request($req,
    sub {
        my ( $chunk, $res ) = @_;
        $bytes_received += length($chunk);
        unless ( defined $expected_length ) {
            $expected_length = $res->content_length || 0;
        }
        if ($expected_length) {
            printf STDERR "%d%% - ", 100 * $bytes_received / $expected
+_length;
        }
        print STDERR "$bytes_received bytes received\n";

        # XXX Should really do something with the chunk itself
        print IN $chunk;
    }
);

print $res->status_line, "\n";
close IN;
exit;
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