logins - list user and system login information
/usr/bin/logins [-admopstux] [-g group...]
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 may be used together. If so, any login that matches any
criteria are displayed.
The following options are supported:
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.
Selects logins with duplicate uids.
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.
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.
Displays multiple group membership information.
Formats output into one line of colon-separated
Selects logins with no passwords.
Selects all system logins.
Sorts output by login instead of by uid.
Selects all user logins.
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:
Account has no password
Account is locked for UNIX authentication
Account is a no login account
Account probably has a valid password
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