4.3BSD-UWisc/man/cat5/group.5

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GROUP(5)            UNIX Programmer's Manual             GROUP(5)



NAME
     group - group file

SYNOPSIS
     /etc/group

DESCRIPTION
     _G_r_o_u_p contains for each group the following information:

     o+ group name

     o+ encrypted password

     o+ numerical group ID

     o+ 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 /_e_t_c directory.  Because of the
     encrypted passwords, it can and does have general read per-
     mission 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; +_n_a_m_e means to insert the entry (if any) for
     _n_a_m_e 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.

EXAMPLE
     +myproject:::bill, steve
     +:

     If these entries appear at the end of a group file, then the
     group _m_y_p_r_o_j_e_c_t will have members _b_i_l_land_s_t_e_v_e, and the
     password and group ID of the yellow pages entry for the
     group _m_y_p_r_o_j_e_c_t.  All the groups listed in the yellow pages
     will be pulled in and placed after the entry for _m_y_p_r_o_j_e_c_t.

FILES
     /etc/group /etc/yp/group

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




Printed 12/27/86         1 February 1985                        1






GROUP(5)            UNIX Programmer's Manual             GROUP(5)



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





















































Printed 12/27/86         1 February 1985                        2