lslogins - display information about known users in the system

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

       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/>.

util-linux 2.40.2                                  2024-01-31                                        LSLOGINS(1)

       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.

       0
           if OK,

       1
           if incorrect arguments specified,

       2
           if 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.

       lslogins - display information about known users in the system

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

   Passwordstatus
       Multiple fields describe password status.

       "Passwordislocked"
           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.

       "Passwordnotrequired(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.

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

       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-filepath
           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, --outputlist
           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-formattype
           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-filepath
           Alternate path for wtmp.

       --lastlogpath
           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.

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

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

lslogins [options] [-s|-u[=UID]] [-ggroups] [-llogins] [username]