install erlang in ubuntu

How to Install Erlang in Ubuntu

Erlang is a robust programming language used for building large-scale real-time applications which require high availability. In this article, we will look at how to install Erlang in Ubuntu. You can also use these steps to install Erlang in other Debian Linux systems.

How to Install Erlang in Ubuntu

Here are the steps to install Erlang in Ubuntu.

1. Add Erlang Repository

Open terminal and run the following command to add erlang repository to your system.

$ sudo wget 
$ sudo dpkg -i erlang-solutions_1.0_all.deb

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2. Update Ubuntu

Update Ubuntu packages

$ sudo apt-get update

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3. Install Erlang

Run the following command to install Erlang in Ubuntu.

$ sudo apt-get install erlang

Alternatively, if you want to do a complete installation of Erlang including OTP, then run the following command.

$ sudo apt-get install esl-erlang

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4. Test Erlang

Let’s create a simple script to test our installation. Create an empty .erl file

$ sudo vi helloworld.erl

Add the following code to it.

% hello world program 
start() -> io:fwrite("Hello World!\n").

Compile the above script with the following command. It will create helloworld.beam file.

$ sudo erlc helloworld.erl

Run the program with the following command.

$ sudo erl -noshell -s helloworld start -s init stop

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Remove Erlang

If you want to remove Erlang from your system just run the following commands.

$ sudo apt remove erlang
$ sudo apt autoremove

That’s it. As you can see it is very easy to install Erlang in Ubuntu. If you work with erlang, you might also be interested in reading How to install RabbitMQ in Ubuntu.

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