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)