QuickStart Erlang Programming Hello-World on Gnu/Linux

How to Get Started

4. 2. Installing Erlang

   How to Install Erlang on Linux Distros

   Erlang SetUp for Linux

   Erlang Installation on Linux

5. 3. Making Hello-World

   Create an Erlang Hello World Example
   Here for simplicity I’ll make use of the nano editor..

   mkdir ~/Documents/erlang

   To put stuff into order an erlang directory is created with the above command

   cd ~/Documents/erlang

   We change to the target directory

   nano helloworld.erl

   And Append this Erlang content:

   -module(helloworld).
   -export([start/0]).
   
   start() -> io:format("Hello world~n").
   

   Ctrl+x to Save & Exit from nano editor

6. 4. Running Hello World

   Now to Executing the Erlang Hello World.

   chmod +x ~/Documents/erlang/helloworld.erl

   This to give Execution Permissions

   erl

   Then we start the Erlang Shell to Compile and Run the example

   1> c(helloworld).
   {ok, helloworld}
   

   To compile the Erlang helloworld Module

   2> helloworld:start().
   Hello world/nok
   

   To Run

   3> halt().
   

   To Stop the program
   In the end to Quit the Erlang shell hits Ctrl+c twice…

7. 5. Getting Started Docs

   OnLine Erlang Tutorials and Documents

   Erlang Docs

   Erlang Documents