function, while ypdomainname and nisdomainname use the getdomainname (2). dnsdomainname will print the domain partfunction, while ypdomainname and nisdomainname use the getdomainname (2). dnsdomainname will print the domain partfunction, while ypdomainname and nisdomainname use the getdomainname (2). dnsdomainname will print the domain partfunction, while ypdomainname and nisdomainname use the getdomainname (2). dnsdomainname will print the domain partfunction, while ypdomainname and nisdomainname use the getdomainname (2). dnsdomainname will print the domain part