lslogins

LSLOGINS(1)                      User Commands                     LSLOGINS(1)

NAME
       lslogins - display information about known users in the system

SYNOPSIS
       lslogins [options] [-s|-u[=UID]] [-g groups] [-l logins] [username]

DESCRIPTION
       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.

OPTIONS
       Mandatory  arguments  to  long  options are mandatory for short options
       too.

       -a, --acc-expiration
              Display data about the date of last password change and the  ac-
              count  expiration date (see shadow(5) for more info).  (Requires
              root privileges.)

       --btmp-file path
              Alternate path for btmp.

       -c, --colon-separate
              Separate info about each user with a colon instead of a newline.

       -e, --export
              Output data in the format of NAME=VALUE.

       -f, --failed
              Display data about the users' last failed login attempts.

       -G, --supp-groups
              Show information about supplementary groups.

       -g, --groups=groups
              Only 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, --help
              Display help information and exit.

       -L, --last
              Display data containing information about the users' last  login
              sessions.

       -l, --logins=logins
              Only  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 ig-
              nored.

       -n, --newline
              Display each piece of information on a separate line.

       --noheadings
              Do not print a header line.

       --notruncate
              Don't truncate output.

       -o, --output list
              Specify which output columns to print.  The default list of col-
              umns may be extended if list is specified in the format +list.

       --output-all
              Output  all available columns.  --help to get a list of all sup-
              ported columns.

       -p, --pwd
              Display information related  to  login  by  password  (see  also
              -afL).

       -r, --raw
              Raw output (no columnation).

       -s, --system-accs
              Show  system  accounts. These are by default all accounts with a
              UID between 101 and 999 (inclusive), with the exception  of  ei-
              ther  nobody  or  nfsnobody (UID 65534).  This hardcoded default
              may be overwritten by parameters SYS_UID_MIN and SYS_UID_MAX  in
              the file /etc/login.defs.

       --time-format type
              Display  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-accs
              Show  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, --version
              Display version information and exit.

       --wtmp-file path
              Alternate path for wtmp.

       -Z, --context
              Display the users' security context.

       -z, --print0
              Delimit user entries with a nul character, instead of a newline.

NOTES
       The default UID thresholds are read from /etc/login.defs.

EXIT STATUS
       0      if OK,

       1      if incorrect arguments specified,

       2      if a serious error occurs (e.g. a corrupt log).

SEE ALSO
       group(5), passwd(5), shadow(5), utmp(5)

HISTORY
       The lslogins utility is inspired by the logins utility, which first ap-
       peared in FreeBSD 4.10.

AUTHORS
       Ondrej Oprala <ooprala@redhat.com>
       Karel Zak <kzak@redhat.com>

AVAILABILITY
       The lslogins command is part of the util-linux package and is available
       from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-
       linux/>.

util-linux                        April 2014                       LSLOGINS(1)