def set_exec_path(path)
			yml = YAML.load_file(@config_file)
			yml[:exec_path] = File.expand_path(path)
			File.open(@config_file, 'w+'){|f| f.write(yml.to_yaml)}
		end
def set_exec_path(path)
			yml = YAML.load_file(@config_file)
			yml[:exec_path] = File.expand_path(path)
			File.open(@config_file, 'w+'){|f| f.write(yml.to_yaml)}
		end
set exec path