This is not exactly what was requested by the current tutorial step. Feel free to play with the shell, anyway.
Erlang R13B04 (erts-5.7.5) > node(). "This functionality has been disabled for security reasons in tryerlang.org." > q(). "This functionality has been disabled for security reasons in tryerlang.org." > ls(). "This functionality has been disabled for security reasons in tryerlang.org." >