AR
❯ echo $ERL_AFLAGS
-kernel shell_history enabled
❯ System.get_env "ERL_AFLAGS"
❯ iex
Erlang/OTP 23 [erts-11.0.2] [source] [64-bit] [smp:16:16] [ds:16:16:10] [async-threads:1] [hipe]
Interactive Elixir (1.10.3) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> System.get_env "ERL_AFLAGS"