Erlang Binary Files

Use a binary data structure called binary to store a large amount of raw data. Binary files store data in a more space-saving way than lists or tuples, and the runtime system is optimized for efficient input and output of binary files. Binary files are written and printed in the form of an integer or string sequence, enclosed in less than or greater than brackets.

The following is an example of a binary file in Erlang−

Online Example

-module(helloworld).　
-export([start/0]).　
start()　->　
　　　io:fwrite("~p~n",[<<5,10,20>>]),　
　　　io:fwrite("~p~n",[<<"hello">>]).

Output Result:

<<5,10,20>>
<<"hello">>

Let's see the Erlang functions that can be used to handle binary files -