Rust Programming Cookbook

How it works...

After setting up the project, we dive right in with step 1 and provide the imports required to work with the file APIs. Note that working with and reading/writing files are in two different modules: std::fs for access and std::io for read and write. In addition to that, the std::path module provides powerful and easy ways to work with paths in a platform-agnostic way.

Step 2 provides a function that shows several ways to read data from the test file we created in preparation. First, we open the file and pass the reference to BufReader (https://doc.rust-lang.org/std/io/struct.BufReader.html), a buffered reader. While the initial reference allows reading data as well, BufReader reads the file contents in bulk and serves them ...