.\" Copyright (c) 1983 1990 The Regents of the University of California. .\" All rights reserved. .\" .\" %sccs.include.redist.man% .\" .\" @(#)groups.1 6.4 (Berkeley) 03/14/91 .\" .Vx .Vx .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 .Pa /etc/passwd and possibly to other groups as specified in the file .Pa /etc/group . 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. .Pp When a new file is created it is given the group of the containing directory. .Sh SEE ALSO .Xr group 5 , .Xr setgroups 2 .Sh FILES .Dw /etc/passwd .Di L .Dp Pa /etc/passwd .Dp Pa /etc/group .Dp .Sh HISTORY .Nm Group appeared in 4.2 BSD. .Sh BUGS More groups should be allowed.