In irb and many other interactive shells, I can do a Ctrl+L to clear the screen.
irb
What\'s the equivalent in Elixir\'s iex
iex
Are you on a Mac? You could try Command+K. That usually works for me.
As José Valim said, you can call clear inside iex.
clear
iex> h clear/0 * def clear() Clear the console screen.