Those scripts are licensed as per the WTFPL:
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004
Copyright (C) 2004 Sam Hocevar sam@hocevar.net
Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
You just DO WHAT THE FUCK YOU WANT TO.