print STDERR " -i interval: polling period\n";
print STDERR " -c : clear stats file first\n";
print STDERR " -g : graphable output format\n";
print STDERR " -h : help, display this information\n";
print STDERR " -i interval: polling period\n";
print STDERR " -c : clear stats file first\n";
print STDERR " -g : graphable output format\n";
print STDERR " -h : help, display this information\n";