- open
- read_to_string
Rust - read content of a file as a string
examples/files/read-whole-file/src/main.rs
use std::fs::File; use std::io::Read; fn main() { let filename = "data.txt"; match File::open(filename) { Ok(mut file) => { let mut content = String::new(); file.read_to_string(&mut content).unwrap(); println!("{}", content); }, Err(error) => { println!("Error opening file {}: {}", filename, error); }, } }