ijverig
How to stop input inside iex
How could I send an EOF/EOT inside an input in iex?
Say inside
iex> IO.read :all
Usually we do it by pressing ctrl+D on other shells, but that’s something else in Erlang.
If there isn’t a way, how could I stop the input in a way that I could access the data already entered?
First Post!
scarfacedeb
You can use Ctrl + G to enter Job control mode, there you can interrupt the running job (e.g. with i 1) and connect to it back.
iex(5)> IO.read :all
1111
User switch command
--> j
1* {erlang,apply,[#Fun<Elixir.IEx.CLI.1.121285560>,[]]}
--> i 1
--> c 1
{:error, :interrupted}
iex(6)>
Most Liked
jstimps
It appears erl and iex both block the user from issuing the EOF signal, which can usually be done with Ctrl+d.
However, if you use elixir then it works!
$ elixir --eval 'IO.write("> "); l = IO.read(:stdio, :line); IO.inspect(l)'
> :eof
At the prompt above, I gave Ctrl+d and it got :eof like expected. However, this doesn’t work in iex; I assume this is on purpose to avoid accidentally terminating the shell input loop.
Hope this helps other future searchers 
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Error tracking, logs, APM, uptime and cron monitoring in one dev-friendly platform. Find and fix problems before your users notice.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Develop your skills with books, videos, and courses.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"