Provided by: coreutils_8.25-2ubuntu3~16.04_amd64 

NAME
logname - print user´s login name
SYNOPSIS
logname [OPTION]
DESCRIPTION
Print the name of the current user.
--help display this help and exit
--version
output version information and exit
AUTHOR
Written by FIXME: unknown.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report logname translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright © 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
<http://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.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/logname>
or available locally via: info '(coreutils) logname invocation'
GNU coreutils 8.25 February 2017 LOGNAME(1)