4.3BSD-Reno/share/man/cat1/groups.0

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GROUPS(1)		    UNIX Reference Manual		     GROUPS(1)

NNAAMMEE
     ggrroouuppss - show group memberships

SSYYNNOOPPSSIISS
     ggrroouuppss [_u_s_e_r]

DDEESSCCRRIIPPTTIIOONN
     The ggrroouuppss command shows the groups to which you or the optionally speci-
     fied user belong.	Each user belongs to a group specified in the password
     file /_e_t_c/_p_a_s_s_w_d and possibly to other groups as specified in the file
     /_e_t_c/_g_r_o_u_p.  If you do not own a file but belong to the group which it is
     owned by then you are granted group access to the file.

     When a new file is created it is given the group of the containing direc-
     tory.

SSEEEE AALLSSOO
     group(5), setgroups(2)

FFIILLEESS
     /_e_t_c/_p_a_s_s_w_d
     /_e_t_c/_g_r_o_u_p


HHIISSTTOORRYY
     GGrroouupp appeared in 4.2 BSD.

BBUUGGSS
     More groups should be allowed.