-bin/dnsdomainname
-bin/domainname
bin/hostname
-bin/nisdomainname
-bin/ypdomainname
-#usr/share/man/man1/dnsdomainname.1
-#usr/share/man/man1/domainname.1
#usr/share/man/man1/hostname.1
-#usr/share/man/man1/nisdomainname.1
-#usr/share/man/man1/ypdomainname.1