The best way to explain this is by showing the code:

for my $key (keys %logins) {
        my $response = get("http://www.dtdns.net/autodns.cfm?id=$key&p
+w=$logins{$key}&ip=$ip");
        print "$key: [$response]\n";
}
[download]

When I run this I get from the print statement:

key1: [
The Response from key1]
key2: [
The Response from key2]
[download]

So I decided to strip the \n out of $response so that it was all on one line:

for my $key (keys %logins) {
        my $response = get("http://www.dtdns.net/autodns.cfm?id=$key&p
+w=$logins{$key}&ip=$ip");
        $response =~ s/\n//g;
        print "$key: [$response]\n";
}
[download]

Now I get this:

The Response from key1]
The Response from key2]
[download]

So why do I lose the "key: [" part now that I strip the \n characters?
cheers, Bjorn