man/man1m/logins.1m

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 LOGINS 1M "Sep 6, 2005"
 NAME
logins - list user and system login information
 SYNOPSIS

/usr/bin/logins [-admopstux] [-g group...]
 [-l login_name...]


 DESCRIPTION

This command displays information on user and system logins known to the
system. Contents of the output is controlled by the command options and can
include the following: user or system login, user id number, passwd
account field value (user name or other information), primary group name,
primary group id, multiple group names, multiple group ids, home directory,
login shell, and four password aging parameters. The default information is the
following: login id, user id, primary group name, primary group id and the
account field value. Output is sorted by user id, system logins, followed by
user logins.
 OPTIONS

Options may be used together. If so, any login that matches any criteria are
displayed.

The following options are supported:
-a

Add two password expiration fields to the display. The fields show how many
days a password can remain unused before it automatically becomes inactive, and
the date that the password expires.


-d

Selects logins with duplicate uids.


-g group

Selects all users belonging to group, sorted by login. Multiple groups
can be specified as a comma-separated list. When the -l and -g
options are combined, a user is only listed once, even if the user belongs to
more than one of the selected groups.


-l login_name...

Selects the requested login. Multiple logins can be specified as a
comma-separated list. Depending on the nameservice lookup types set in
/etc/nsswitch.conf, the information can come from the /etc/passwd
and /etc/shadow files and other nameservices. When the -l and
-g options are combined, a user is only listed once, even if the user
belongs to more than one of the selected groups.


-m

Displays multiple group membership information.


-o

Formats output into one line of colon-separated fields.


-p

Selects logins with no passwords.


-s

Selects all system logins.


-t

Sorts output by login instead of by uid.


-u

Selects all user logins.


-x

Prints an extended set of information about each selected user. The extended
information includes home directory, login shell and password aging
information, each displayed on a separate line. The password information
currently consists of password status:
NP

Account has no password


LK

Account is locked for UNIX authentication


NL

Account is a no login account


PS

Account probably has a valid password


UN

Account password status is unknown. That is, it is not a recognizable hashed
password or any of the above entries. See crypt(3C) for valid password
hashes.


If the login is passworded, status is followed by the date the password was
last changed, the number of days required between changes, and the number of
days allowed before a change is required. The password aging information shows
the time interval that the user receives a password expiration warning message
(when logging on) before the password expires.


 SEE ALSO

passwd(1), crypt(3C), attributes(5)