group man page on Ultrix

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group(5yp)							    group(5yp)

       group - group file in a Yellow Pages environment

       For each group, the file contains:

       Group name
       Encrypted password
       Numerical group ID
       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 needed.

       This  file  resides  in	the directory.	Because of the encrypted pass‐
       words, 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 password or group member field that is not null, the contents  of
       that  field  will  override what is contained in the Yellow Pages.  The
       numerical group ID field cannot be overridden.

       +myproject:::bill, steve

       If these entries appear at the end of a	group  file,  then  the	 group
       myproject  will have members bill and steve, 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.

       The command will not change group passwords.

       ULTRIX file system group file

       Yellow Pages group map

See Also
       yppasswd(1yp), setgroups(2), crypt(3), initgroups(3x), passwd(5yp)


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