Added Comments. rustfmt.

hw5/task1/src/zombie/mod.rs

@@ -3,24 +3,28 @@ use std::{thread, time};
 use nix::sys::signal::*;
 use nix::unistd::{fork, ForkResult};
 
+/// This function creates a **Zombie Process** and shows it using `ps t`.
 pub fn run_zombie() {
     match fork().expect("Fork failed") {
 
         // In case this is the Parent process, kill the new child.
-        ForkResult::Parent{ child } => {
+        ForkResult::Parent { child } => {
             kill(child, SIGKILL).expect("Kill failed");
-        },
+        }
 
         // In case this is the Child process, wait until killed.
         ForkResult::Child => {
             thread::sleep(
-                time::Duration::new(5000, 0) //Wait for a long time
+                time::Duration::new(5000, 0) // Wait for a long time
             );
         }
     }
 
+    // Run `ps t` to show the Zombie Process
+    let output = Command::new("ps").arg("t").output().expect(
+        "Error in run_zombie",
+    );
 
-    let output = Command::new("ps").arg("t").output().expect("Error in run_zombie");
-
-    println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
+    // Print the output of `ps t` to `stdout`
+    println!("{}", String::from_utf8_lossy(&output.stdout));
 }