find the last accessed date of a csv file in rust

To find the last accessed date of a CSV file in Rust, we need to use the std::fs::metadata function to retrieve the metadata for the file. The metadata for a file includes various information about the file, including its last access time.

To use this function, we need to provide the path to the CSV file as an argument. Once we have the metadata, we can extract the last access time using the std::fs::Metadata::accessed method.

Here is an example Rust program that demonstrates how to find the last accessed date of a CSV file:

main.rs
use std::fs;

fn main() -> Result<(), std::io::Error> {
    let path = "data.csv";
    let metadata = fs::metadata(path)?;
    let accessed = metadata.accessed()?;
    println!("Last accessed: {:?}", accessed);
    Ok(())
}
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In this example, we first define the path to the CSV file as a string. We then use fs::metadata to retrieve the metadata for the file, storing it in the metadata variable. We use the ? operator to propagate any errors that may occur.

Next, we extract the last accessed time from the metadata using the fs::Metadata::accessed method, storing it in the accessed variable. Finally, we print the last accessed time using println!.

Note that the last accessed time may not be available on certain platforms or under certain circumstances, in which case this code will return an error. Also, if you need to check the modification time instead of the access time, you can use the fs::Metadata::modified method instead.