kpsereadlink --version (return code: 0)
kpsereadlink (kpathsea version 6.2.1) Copyright (C) 2009 Olaf Weber & Karl Berry. There is NO warranty. You may redistribute this software under the terms of the GNU General Public License For more information about these matters, see the file named GPL. Primary author of kpsereadlink: Olaf Weber.
kpsereadlink --help (return code: 0)
Usage: kpsereadlink FILE If FILE exists and is a symlink, print the contents of the link and exit successfully. Otherwise print nothing and fail. --help display this help and exit --version output version information and exit Email bug reports to firstname.lastname@example.org.