print the user names of users currently logged in to the current host
users [ OPTION ]...[ FILE ]
Output who is currently logged in according to FILE. If FILE is not specified, use /var/run/utmp . /var/log/wtmp as FILE is common.
--help display this help and exit
--version output version information and exit
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
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Copyright 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Written by Joseph Arceneaux and David MacKenzie.