The following steps will walk you through the recipe:

1. Create a file named sample_wait.rs and open it in your text editor.
2. Write the code header with the relevant information:

        //-- #########################
        //-- Task: Waiting for a child process
        //-- Author: Vigneshwer.D
        //-- Version: 1.0.0
        //-- Date: 19 March 17
        //-- #########################

3. Call the standard library:

        // Calling the standard libraries
        use std::process::Command;

4. Define the main function and create a child process using the Command struct:

        // Main execution starts here
        fn main() {
          // Creating a child process
          let mut child =
          Command::new("sleep").arg("5").spawn().unwrap();

5. Create a variable named _result and call the wait method, the last print statement, marking the end of the program:

        // Waiting for the child process to complete
        let _result = child.wait().unwrap();

        // printing the status of child process
        print!("Status if child process {} 
", _result);
        // Marking the end of the main function 
        println!("reached end of main");
        }

You will get the following output upon successful execution of the code: