HP-UX Reference (11i v1 05/09) - 1 User Commands A-M (vol 1)

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groups(1) groups(1)

NAME

groups - show group memberships

SYNOPSIS

groups [-p][-g][

-l][user ]

DESCRIPTION

groups shows the groups to which the caller or the optionally speciﬁed user belong. If invoked with no

arguments,

groups prints the current access list returned by

getgroups() (see getgroups(2)).

Each user belongs to a group speciﬁed in the password ﬁle

/etc/passwd and possibly to other groups as

speciﬁed in the ﬁles

/etc/group

and /etc/logingroup

. A user is granted the permissions of those

groups speciﬁed in

/etc/passwd and /etc/logingroup

at login time. The permissions of the

groups speciﬁed in

/etc/group are normally available only with the use of

newgrp (see newgrp(1)). If

a user name is speciﬁed with no options,

groups prints the union of all these groups.

The

-p, -g, and -l

options limit the printed list to those groups speciﬁed in /etc/passwd ,

/etc/group , and /etc/logingroup

, respectively. If a user name is not speciﬁed with any of these

options,

cuserid() is called to determine the default user name (see cuserid(3S)).

The printed list of groups is sorted in ascending collation order (see Environment Variables below).

EXTERNAL INFLUENCES

Environment Variables

LC_COLLATE determines the order in which the output is sorted.

If LC_COLLATE is not speciﬁed in the environment or is set to the empty string, the value of

LANG is

used as a default. If

LANG is not speciﬁed or is set to the empty string, a default of ‘‘C’’ (see lang(5)) is

used instead of

LANG. If any internationalization variable contains an invalid setting,

groups behaves as

if all internationalization variables are set to ‘‘C’’ (see environ(5)).

EXAMPLES

Check ﬁle

/etc/logingroup

and display all groups to which user tim belongs:

groups -l tim

AUTHOR

groups was developed by the University of California, Berkeley.

FILES

/etc/group

/etc/logingroup

/etc/passwd