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GROUP(5)							      GROUP(5)

NAME
       group - group file

SYNOPSIS
       /etc/group

DESCRIPTION
       NOTE: This file is superceded by netinfo(5) if NetInfo is running.

       Group contains for each group the following information:

       · group name

       · encrypted password

       · numerical group ID

       · a comma separated list of all users allowed in the group

       This  is an ASCII file.	The fields are separated by colons; each group
       is separated from the next by a new-line.  If  the  password  field  is
       null, no password is demanded.

       This  file  resides  in	the  /etc directory.  Because of the encrypted
       passwords, it can and does have general	read  permission  and  can  be
       used, for example, to map numerical group ID's to names.

       A  group file can have a line beginning with a plus (+), which means to
       incorporate entries from the yellow pages.  There are two styles	 of  +
       entries:	 All  by  itself, + means to insert the entire contents of the
       yellow pages group file at that point; +name means to insert the	 entry
       (if  any)  for  name from the yellow pages at that point.  If a + entry
       has a non-null password or group member field,  the  contents  of  that
       field  will  overide  what  is  contained  in  the  yellow  pages.  The
       numerical group ID field cannot be overridden.

       A group file can also have a line beginning with	 a  minus  (-),	 these
       entries are used to disallow group entries.  There is only one style of
       - entries: An entry that	 consists  of  -name  means  to	 disallow  any
       subsequent  entry  (if any) for name.  These entries will be disallowed
       regardless of whether the subsequent entry comes from the yellow	 pages
       or the local group file.

EXAMPLE
       -oldproj
       +myproject:::bill, steve
       +:

       If  these  entries  appear  at  the end of a group file, then the group
       oldproj
	will be ignored if it appears after the	 entry	-oldproj.   Also,  the
       group  myproject	 will  have members billandsteve, and the password and
       group ID of the yellow pages entry for the group	 myproject.   All  the
       groups  listed  in  the yellow pages will be pulled in and placed after
       the entry for myproject.

FILES
       /etc/group - if NetInfo is not running /etc/yp/group

SEE ALSO
       setgroups(2), initgroups(3), crypt(3), passwd(1), passwd(5), netinfo(5)

BUGS
       The passwd(1) command won't change group passwords.

				1 February 1985			      GROUP(5)
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