How to Check if a File or Directory Exists in Rust

Use std::path::Path::exists() to check if a file or directory exists at a given path.

use std::path::Path;

fn main() {
    let path = Path::new("/home/sd/crewai/src/rust/book");
    if path.exists() {
        println!("Path exists");
    } else {
        println!("Path does not exist");
    }
}

Checking if a file or directory exists in Rust verifies if a specific location on your computer's file system actually contains a file or folder. It is like looking at a map to confirm a building is there before you try to walk inside. You use this to prevent your program from crashing when it tries to access something that isn't there.