An easy way to lookup Linux/Unix user and group information from /etc/passwd and /etc/group. It will cache the information for a duration specified by the user.
use user_lookup::async_reader::PasswdReader;
use std::time::Duration;
#[tokio::main]
async fn main() {
let mut reader = PasswdReader::new(Duration::new(0,0));
println!("User with uid 1000 is: {}", reader.get_username_by_uid(1000).await.unwrap().unwrap());
}