.\" Copyright 2014 Ondrej Oprala (ondrej.oprala@gmail.com)
.\" May be distributed under the GNU General Public License
.TH LSLOGINS "1" "April 2014" "util-linux" "User Commands"
.SH NAME
lslogins \- display information about known users in the system
.SH SYNOPSIS
.B lslogins
[\fI-adehmoptvx\fR] [-s|-u[\fI=UID\fR]] [-g \fIGROUPS\fR] [-l \fILOGINS\fR]
.SH DESCRIPTION
.PP
Examine the wtmp and btmp logs, /etc/shadow (if necessary) and /etc/passwd
and output the desired data.
.PP
Mandatory arguments to long options are mandatory for short options too.
.PP
The default action is to list info about all the users in the system.
.SH OPTIONS
.PP
Display info about existing users.
.TP
\fB\-a\fR, \fB\-\-acc\-expiration\fR
Display data about the date of last password change and the account expiration date (see shadow(5) for more info).
.TP
\fB\-c\fR, \fB\-\-colon\fR
Separate info about each user with a colon instead of a newline.
.TP
\fB\-d\fR, \fB\-\-duplicates\fR
Show users with duplicate UIDs.
.TP
\fB\-e\fR, \fB\-\-export\fR
Output data in the format of NAME=VALUE.
.TP
\fB\-f\fR, \fB\-\-failed\fR
Display data about the users' last failed login attempts.
.TP
\fB\-g\fR, \fB\-\-groups\fR=\fIGROUPS\fR
Only show data of users belonging to \fIGROUPS\fR. More than one group may be specified; the list has to be comma-separated.
.TP
\fB\-\-last\fR
Display data containing information about the users' last login sessions.
.TP
\fB\-l\fR, \fB\-\-logins\fR=\fILOGINS\fR
Only show data of users with a login specified in \fILOGINS\fR. More than one login may be specified; the list has to be comma-separated.
.TP
\fB\-m\fR, \fB\-\-more\fR
Show secondary groups as well.
.TP
\fB\-n\fR, \fB\-\-newline\fR
Display each piece of information on a separate line.
.TP
\fB\-p\fR, \fB\-\-no\-password\fR
Show users without a password.
.TP
\fB\-r\fR, \fB\-\-raw\fR
Raw output (no columnation).
.TP
\fB\-s\fR, \fB\-\-sys\-accs\fR[=\fIUID\fR]
Show system accounts. These are by the default all accounts with UID below 1000 (non-inclusive), with the exception of either nobody or nfsnobody (UID 65534). The UID
treshold can also be specified explicitly (necessary for some distributions that allocate UIDs
starting from 100, 500 - or an entirely different value - rather than 1000).
.TP
\fB\-t\fR, \fB\-\-sort\fR
Sort by user name, rather than UID.
.TP
\fB\-u\fR, \fB\-\-user\-accs\fR[=\fIUID\fR]
Show user accounts. These are by the default all accounts with UID above 1000 (inclusive), with the exception of either nobody or nfsnobody (UID 65534). The UID
treshold can also be specified explicitly (necessary for some distributions that allocate UIDs
starting from 100, 500 - or an entirely different value - rather than 1000).
.TP
\fB\-x\fR, \fB\-\-extra\fR
Show extra information about users - home diretory, default login shell, password age and expiry information.
.TP
\fB\-z\fR, \fB\-\-print0\fR
Delimit user entries with a nul character, instead of a newline.
.TP
\fB\-h\fR, \fB\-\-help\fR
Display help information and exit.
\fB\-v\fR, \fB\-\-version\fR
Display version information and exit.
Note that switches -a and -x require root priviliges. Otherwise their fields will state <unknown> for each entry.
.sp
.SH COLORS
Implicit coloring can be disabled as follows:
.RS
.br
.BI "touch /etc/terminal-colors.d/lslogins.disable"
.br
.RE
For more details see
.BR terminal-colors.d (5).
.SH EXIT STATUS
.TP
0
if OK,
.TP
1
if incorrect arguments specified,
.TP
2
if a serious error occurs (e.g. a corrupt log).
.SH SEE ALSO
\fBgroup\fP(5), \fBpasswd\fP(5), \fBshadow\fP(5), \fButmp\fP(5)
.SH HISTORY
The \fBlslogins\fP utility is inspired by the \fBlogins\fP utility, which first appeared in FreeBSD 4.10.
.SH AUTHORS
.MT ondrej.oprala@gmail.com
Ondrej Oprala
.ME
.SH AVAILABILITY
The lslogins command is part of the util-linux package and is available from
.UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
Linux Kernel Archive
.UE .
