print "abc\n";
print "def\n";
print "ghi\n";

becomes

print "abc\n", "def\n", "ghi\n";

or

print << EOD;
abc
def
ghi
EOD


##</code><code>##

use CGI qw(:cgi);

my $url = $_[0];
my $q = CGI->new();

  print $q->redirect(
                   -url    => $url
                  );

# becomes

my $q = CGI->new();

  print $q->redirect(
                   -url    => $_[0]                  );

##</code><code>##

&get_data (\$current_date, \$remote_host, 
           \$remote_addr, \$server_name);
#...
sub get_data {

my ($current_date, $remote_host, 
    $remote_addr, $server_name) = @_;
#....
    # get the information about who submitted the form
    $$remote_host = $ENV{'REMOTE_HOST'};
    $$remote_addr = $ENV{'REMOTE_ADDR'};
    $$server_name = $ENV{'SERVER_NAME'};
}

##</code><code>##

($current_date, $remote_host, 
  $remote_addr, $server_name) = get_data();

sub get_data {
#...
# get the current date
    ($day, $month, $year) = (localtime)[3,4,5];
    $year += 1900;
    return ( "$months[$month] $day, $year",
             $ENV{'REMOTE_HOST'}, $ENV{'REMOTE_ADDR'},
             $ENV{'SERVER_NAME'};
}