my $cmd = [qw(curl --tcp-nodelay --no-buffer -T- -HExpect: -sS), $url];
open my $cout, '+>', undef or die;
open my $cerr, '>', undef or die;
my $cmd = [qw(curl --tcp-nodelay --no-buffer -T- -HExpect: -sS), $url];
open my $cout, '+>', undef or die;
open my $cerr, '>', undef or die;