$ demo Tasks: demo abc # print 'abc' demo efg [option] # print 'efg' demo help [TASK] # Describe available tasks or one specific task $ demo abc abc! $ demo zzz Could not find task "zzz". $ demo efg efg! $ demo efg -u EFG! $ demo help efg Usage: demo efg [option] Options: -u, [--upcase] # disp upcase print 'efg' #! /usr/bin/env ruby require 'rubygems' require 'thor' class Demo < Thor desc "abc", "