print $os->{os}, " " if exists $os->{os};
print $os->{distro}, " " if exists $os->{distro};
print $os->{version}, " " if exists $os->{version};
print $os->{os}, " " if exists $os->{os};
print $os->{distro}, " " if exists $os->{distro};
print $os->{version}, " " if exists $os->{version};