open HIGHLANDER, ">>/tmp/renew.cgi.highlander" or die "Cannot open highlander: $!";

##</code><code>##

Cannot open highlander: No disk space at ...
Cannot open highlander: Permission denied at ...

##</code><code>##

my $highlander = '/tmp/renew.cgi.highlander';
open HIGHLANDER, ">>$highlander" or die "Cannot open $highlander: $!";

##</code><code>##

Cannot open /tmp/renew.cgi.highlander: No disk space at ...
Cannot open /tmp/renew.cgi.highlander: Permission denied at ...