I found this information useful while working my way through the Erlang in Practice screencasts. All of these apply in the interactive shell (erl). Find the Erlang version you’re running: erlang:system_info(otp_release). To clear a variable/binding, so it can be used again: f(variable_to_clear). Show all the running erlang processes: erlang:processes(). Find more useful tips from Joe (such [...]