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 /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 account 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. See also option --shell.

       -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. Unknown group names are ignored.

           Note that the relation between user and group may be invisible for the primary group
           if the user is not explicitly specified as group member (e.g., in /etc/group). If the
           command lslogins scans for groups then it uses the groups database only, and the user
           database with primary GID is not used at all.

       -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. Unknown
           login names are ignored.

       -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 columns may be extended if
           list is specified in the format +list.

       --output-all
           Output all available columns. --help to get a list of all supported 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 either 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.

       -h, --help
           Display help text and exit.

       -V, --version
           Print version and exit.

       --wtmp-file path
           Alternate path for wtmp.

       --lastlog path
           Alternate path for lastlog(8).

       -y, --shell
           The column name will be modified to contain only characters allowed for shell variable
           identifiers. This is usable, for example, with --export. Note that this feature has
           been automatically enabled for --export in version 2.37, but due to compatibility
           issues, now it’s necessary to request this behavior by --shell.

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

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

EXIT STATUS

       0
           if OK,

       1
           if incorrect arguments specified,

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

NOTES

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

   Password status
       Multiple fields describe password status.

       "Password is locked"
           The password is prefixed by '!!', and the user cannot login although the password is
           set or empty. This is common for new accounts without a set password.

       "Password not required (empty)"
           The password is not set (hash is missing); this is common for locked system accounts.
           Not requiring a password does not mean the user can log-in without a password. It
           depends on the password "lock" status.

       "Login by password disabled"
           'yes' means that there is no valid password. The password hash is missing, or the hash
           method is unknown or contains invalid chars.

HISTORY

       The lslogins utility is inspired by the logins utility, which first appeared in FreeBSD
       4.10.

AUTHORS

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

SEE ALSO

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

REPORTING BUGS

       For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.

AVAILABILITY

       The lslogins command is part of the util-linux package which can be downloaded from Linux
       Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.