Tools to help master radare2!
These tools require radare2 to work. Duh. (And currently bash + GNU coretuils)
Folder "bash" contains what you need. Written by Kirils Solovjovs written in bash; allows you to learn all the commands in radare2 toolkit.
Also golf-plugin by pancake (see _other). This plugin is best for solving larger challenges and onlu supports r2 interactive interface.