.\" Copyright (c) 1983 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" %sccs.include.redist.roff%
.\"
.\"	@(#)groups.1	6.6 (Berkeley) 08/05/91
.\"
.Dd 
.Dt GROUPS 1
.Os BSD 4.2
.Sh NAME
.Nm groups
.Nd show group memberships
.Sh SYNOPSIS
.Nm groups
.Op Ar user
.Sh DESCRIPTION
The
.Nm groups
command shows the groups to which you or the optionally specified
user belong.
Each user belongs to a group specified in the password file
and possibly to other groups.
If you do not own a file but belong to the group by which it is owned,
then you are granted group access to the file.
.Pp
When a new file is created it is given the group of the containing
directory.
.Sh SEE ALSO
.Xr id 1 ,
.Xr group 5 ,
.Sh HISTORY
The
.Nm groups
command appeared in
.Bx 4.2 .