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REVNETGROUP(8)				 Reference Manual			   REVNETGROUP(8)

       revnetgroup - generate reverse netgroup data

       /usr/lib/yp/revnetgroup [-u|-h]

       Revnetgroup processes the standard input in netgroup(5) format into what is called reverse
       netgroup form. That is, where the original file shows netgroup  memberships  in	terms  of
       which  members  reside  in  a particular group, the reverse netgroup format specifies what
       groups are associated with a particular member. This information is used to  generate  the
       netgroup.byuser	and  netgroup.byhosts  NIS  maps. These reverse netgroup maps are used to
       help speed up netgroup lookups, particularly for the innetgr library function.

       The revnetgroup command prints its results on the standard output. It  is  usually  called
       only by /var/yp/Makefile when rebuilding the NIS netgroup maps.

       The revnetgroup command supports the following options:

       -u     Generate netgroup.byuser output; only username information in the original netgroup
	      file is processed.

       -h     Generate netgroup.byhost output; only hostname information in the original netgroup
	      file is processed.

       Note at least one of the both flags must be specified.

       /var/yp/Makefile    The Makefile to build the NIS databases
       /etc/netgroup	   the default netgroup database file. This file is most often found only
			   on the NIS master server

       getnetgrent(3), netgroup(5),

       revnetgroup was written by Thorsten Kukuk <kukuk@suse.de>.

YP Server				   August 2001				   REVNETGROUP(8)
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