##To run:

go to devel folder and run: source setup.bash

then, after starting roscore: rosrun turtlesim1 turtle_sim1_node --This starts the turtlesim simulator in another terminal window: rosrun turtlesim1 turtle_teleop_key1 --This starts the teleop prompt, allowing you to control the turtle with keys. For draw_square: rosrun draw_square draw_square -- This starts draw_square, provided that you have already started turtle_sim1_node in another window. ###Make sure you run source /opt/ros/indigo/setup.bash each time a new terminal window is opened, if setup.bash is not already within your toolchain!