lslogins — display information about known users in the system
lslogins [options] [
−s | −u [=UID] ] [ −g groups ] [ −l logins ] [username]
Examine the wtmp and btmp logs, /etc/shadow (if necessary) and /etc/passwd and output the desired data.
The optional argument username forces lslogins to print all
available details about the specified user only. In this case
the output format is different than in case of −l or −g and unknown is username reported as an
error.
The default action is to list info about all the users in the system.
Mandatory arguments to long options are mandatory for short options too.
−a, −−acc−expirationDisplay data about the date of last password change and the account expiration date (see shadow(5) for more info). (Requires root privileges.)
−−btmp−file
pathAlternate path for btmp.
−c, −−colon−separateSeparate info about each user with a colon instead of a newline.
−e, −−exportOutput data in the format of NAME=VALUE.
−f, −−failedDisplay data about the users' last failed login attempts.
−G, −−supp−groupsShow information about supplementary groups.
−g, −−groups=groupsOnly show data of users belonging to groups. More than one
group may be specified; the list has to be
comma-separated. The unknown group names are
ignored.
Note that relation between user and group may be invisible for primary group if the user is not explicitly specify as group member (e.g. in /etc/group). If the command lslogins scans for groups than it uses groups database only, and user database with primary GID is not used at all.
−h, −−helpDisplay help information and exit.
−L, −−lastDisplay data containing information about the users' last login sessions.
−l, −−logins=loginsOnly show data of users with a login specified in
logins (user
names or user IDS). More than one login may be
specified; the list has to be comma-separated. The
unknown login names are ignored.
−n, −−newlineDisplay each piece of information on a separate line.
−−noheadingsDo not print a header line.
−−notruncateDon't truncate output.
−o, −−output listSpecify which output columns to print. The default
list of columns may be extended if list is specified in
the format +list.
−−output−allOutput all available columns. −−help to get a list of all
supported columns.
−p, −−pwdDisplay information related to login by password
(see also −afL).
−r, −−rawRaw output (no columnation).
−s, −−system−accsShow system accounts. These are by default all accounts with a UID below 1000 (non-inclusive), with the exception of either nobody or nfsnobody (UID 65534). This hardcoded default maybe overwritten by parameters SYS_UID_MIN and SYS_UID_MAX in the file /etc/login.defs.
−−time−format
typeDisplay dates in short, full or iso format. The default is short, this time format is designed to be space efficient and human readable.
−u, −−user−accsShow user accounts. These are by default all accounts with UID above 1000 (inclusive), with the exception of either nobody or nfsnobody (UID 65534). This hardcoded default maybe overwritten by parameters UID_MIN and UID_MAX in the file /etc/login.defs.
−V, −−versionDisplay version information and exit.
−−wtmp−file
pathAlternate path for wtmp.
−Z, −−contextDisplay the users' security context.
−z, −−print0Delimit user entries with a nul character, instead of a newline.
0if OK,
1if incorrect arguments specified,
2if a serious error occurs (e.g. a corrupt log).
The lslogins
utility is inspired by the logins utility, which first
appeared in FreeBSD 4.10.
The lslogins command is part of the util-linux package and is available from Linux Kernel Archive
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Copyright 2014 Ondrej Oprala (ondrej.opralagmail.com) May be distributed under the GNU General Public License |