Fun With: Elixir - configure iex

Fun with Elixir: Configuring Iex

Pressing up does not show previous shell commands

This is basic bash shell functionality. Well it’s turned off by default … grr

to enable use this environment variable

export ERL_AFLAGS="-kernel shell_history enabled"

you can find more info on iex configuration here

There is a ton of useful stuff on that page that wasn’t in Elixir a year ago.

Eg breakpoints.

Other useful stuff is colours (especially if like me you cannot read red on black)