Provided by: util-linux_2.34-0.1ubuntu2_amd64
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 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. -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).
The lslogins utility is inspired by the logins utility, which first appeared in FreeBSD 4.10.
Ondrej Oprala ⟨email@example.com⟩ Karel Zak ⟨firstname.lastname@example.org⟩
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/⟩.