$ parsort --version
GNU parsort 20220822
Copyright (C) 2007-2022 Ole Tange,
http://ole.tange.dk and 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.
GNU parsort comes with no warranty.
Web site:
https://www.gnu.org/software/parsortWhen using programs that use GNU Parallel to process data for publication
please cite as described in 'parallel --citation'.