Wait
If you'd like to wait for a process::Child
to finish, you must call
Child::wait
, which will return a process::ExitStatus
.
use std::process::Command;
fn main() {
let mut child = Command::new("sleep").arg("5").spawn().unwrap();
let _result = child.wait().unwrap();
println!("reached end of main");
}
$ rustc wait.rs && ./wait
# `wait` keeps running for 5 seconds until the `sleep 5` command finishes
reached end of main