Erlang is a functional programming language used to build scalable real-time systems with high availability. OTP is a set of libraries and the foundation of these systems. In this article, you will learn how to install and use the latest version of Erlang/OTP R16B on Mavericks, Mountain Lion, Lion or Snow Leopard.
Rudix provides Erlang pre-compiled packages for Mavericks, Mountain Lion, Lion and Snow Leopard. The page you will going to access is rudix.org/packages/erlang.html.
After the download, double click the package and follow the installation instructions. Note that Erlang/OTP is big and requires (after installed) about 300MB of disk space.
Erlang/OTP will be installed under
/usr/local/ and the full path for the Erlang/OTP interpreter will be
/usr/local/bin/erl, but you don’t need to type the full path every time you want to call Erlang, it’s OK just to type
erl on the Terminal to get the interpreter.
/usr/local/bin/erl /usr/local/lib/erlang/ /usr/local/share/doc/erlang/README.md
On Mountain Lion and Mavericks things are a bit hard, you will probably get “erlang-R15B02-0.pkg” can’t be opened because it is from an unidentified developer. This means that the package was not registered with Apple – but you can choose to trust Rudix developers (I’m the author) and install anyway.
Here is how to bypass once your security settings:
Controlkey and click the package.
And now follow the installation instructions.
Test if your installation is OK by printing “Hello World!”.
erl Erlang R15B02 (erts-5.9.2) [source] [64-bit] [smp:2:2] [async-threads:0] [hipe] [kernel-poll:false] Eshell V5.9.2 (abort with ^G) 1> io:fwrite("Hello World!"). Hello World!ok
Return to exit. There’s a command
halt(). with the same effect.