rust cmd stdio demo

Posted 2021-05-18 u010278923

use std::process::{Command, Stdio};
use std::io::{BufRead, BufReader, Write, stdin, Read};
use std::fmt::Error;
use std::thread::{spawn};

fn main() {
   run();
}


fn run() -> Result<(),Error> {
    let result = Command::new("sh")
        //.arg("google.com")
        .stdout(Stdio::piped())
        .stdin(Stdio::piped())
        .spawn()
        .unwrap();

    let stdout = result.stdout.unwrap();
    let reader = BufReader::new(stdout);

    let mut cstdin = result.stdin.unwrap();
    let input  = spawn(move||{
        loop{
            let mut cmd = String::new();
            stdin().read_line(&mut cmd);
            cstdin.write(&cmd.as_bytes()).expect("err write");
        }

    });

    reader.lines()
        .filter_map(|line| line.ok())
        .for_each(|line| println!("{}", line));

    input.join();
    Ok(())
}