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-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.
- -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 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 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 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.
The default UID thresholds are read from /etc/login.defs.
- 0
- if OK,
- 1
- if incorrect arguments specified,
- 2
- if a serious error occurs (e.g. a corrupt log).
group(5),
passwd(5),
shadow(5),
utmp(5)
The
lslogins utility is inspired by the
logins utility, which
first appeared in FreeBSD 4.10.
Ondrej Oprala
Karel Zak
The lslogins command is part of the util-linux package and is available from
Linux
Kernel Archive