How to Install Erlang on Fedora 31/30/29

Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Erlang runtime system has built-in support for concurrency, distribution and fault tolerance. This tutorial will help you to install erlang on Fedora 31/30/29/28/27/26/25 operating system.

• How to Install Erlang on Ubuntu

Step 1 – Install Erlang on Fedora

Erlang is available under the default repositories. You can simply install erlang package on your system run running the following command. This will install other required libraries as well.

sudo dnf install erlang

Step 2 – Check Erlang Version

Type erl on the terminal. This will open the Erlang shell and show you the version.

erl 

Erlang/OTP 20 [erts-9.3.3.6] [source] [64-bit] [smp:3:3] [ds:3:3:10] [async-threads:10] [hipe] [kernel-poll:false]

Eshell V9.3.3.6  (abort with ^G)
1>

Press CTRL + C twice to exit from the Erlang shell.

Step 3 – Erlang Hello World Program

Let’s start with hello world program on erlang. First create file helloworld.erl with following content.

vi helloworld.erl

add the following contnet.

% hello world program
-module(helloworld).
-export([start/0]).

start() ->
io:fwrite("Hello World!\n").

Now compile the hello world program using below command.

erlc helloworld.erl

The above command will create a file helloworld.beam in the current directory. You can run your program now.

erl -noshell -s helloworld start -s init stop

Hello World!

Reference:
https://packages.erlang-solutions.com/erlang/