$type =~ m|^(\w+)$| or die "Invalid graph type";
$type = $graph_types{$1} or die "Invalid graph type";
$type =~ m|^(\w+)$| or die "Invalid graph type";
$type = $graph_types{$1} or die "Invalid graph type";
my @files = glob $path or die "No data found";
push @args, "--start", "-".$days."d";
my @files = glob $path or die "No data found";
push @args, "--start", "-".$days."d";