LOGINS(8) Maintenance Commands and Procedures LOGINS(8)

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(7)

September 6, 2005 LOGINS(8)