yphelper - helper application for internal use

yphelper was written by Thorsten Kukuk <kukuk@linux-nis.org>.

NIS Reference Manual                               12/31/2020                                        YPHELPER(8)

yphelper is a internal helper application for ypserv and should not be used by the normal user or system
       administrator.

       yphelper - helper application for internal use

-ddomainname
           Use domainname as default domain.

       -h
           Print the canonical hostname.

       -imap
           Return '0' if we are the NIS master of map or '1' if not.

       -mmaster
           Print the name of all NIS maps where master is the NIS master server.

       -ppasswdshadow
           Merge the passwd and shadow files.

       -ggroupgshadow
           Merge the group and gshadow files.