fn new_from_line(line: &str) -> Option<(String, Self)> {
        let mut iter = line.split_whitespace();
        // 3rd field
        let name = iter.nth(2).map(ToString::to_string)?;
        // 6th field
        let sectors_read = iter.nth(2).and_then(|v| u64::from_str(v).ok()).unwrap_or(0);
        // 10th field
        let sectors_written = iter.nth(3).and_then(|v| u64::from_str(v).ok()).unwrap_or(0);
        Some((
            name,
            Self {
                sectors_read,
                sectors_written,
            },
        ))
    }
Returns the name and the values we're interested into.
src/unix/linux/disk.rs