use std::process::Command;

fn main(){
    let mut v = vec![
        Command::new("ls").arg("/").spawn().unwrap(),
        Command::new("ls").arg(".").spawn().unwrap()
    ];
    for x in v.into_iter() {
        let stdout = x.wait_with_output().unwrap().stdout;
        println!("process output : {}",String::from_utf8_lossy(&stdout));
    }

}