Questions & Help>Questions

Is it possible to enable a command history feature for the iex console?

#learning-elixir#console
acrolink

acrolink

Is it possible to enable a command history feature for the iex console?

I mean to be able to go back to previously used commands using the up arrow key.

14 comments
#learning-elixir#console
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Marked As Solved

acrolink

acrolink

I am running latest OTP and have just enabled it by:

export ERL_AFLAGS="-kernel shell_history enabled"

5
Post #3

Also Liked

NobbZ

NobbZ

This is enabled by default for all versions of Erlang, but only ever affects the current session.

From Erlang OTP 20 on, you can enable a history that spans sessions:

Be aware though that on windows you might need to use werl/iex --werl.

4
Post #2
m4hi2

m4hi2

I had the same issue. I tried everything from setting the ENV to restarting the machine but in the end, it was a mismatched OTP version. I used 1.14.3-otp-25 as my Elixir version but the Erlang version was set to 26.1.2. After changing the Elixir version to 1.15.7-otp-26 it worked as expected. Leaving this reply as a future reference for myself and others who are in a similar situation and trying to fix the same problem.

3
Post #13
teddylopez

teddylopez

This was my issue as well.

Thanks for posting this :fist_right: :fist_left:

3
Post #14
davidka1

davidka1

All working now, sorry for the noise.

Thanks for all your help @NobbZ.

2
Post #12
silverdr

silverdr

So was mine…

1
Post #15

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