added a repl

Author: exilonium

src/main.rs

@@ -2,10 +2,12 @@
 use std::io::{self, Write};
 
 fn main() {
-    print!("$ ");
-    io::stdout().flush().unwrap();
+    loop{
+        print!("$ ");
+        io::stdout().flush().unwrap();
 
-    let mut command = String::new();
-    io::stdin().read_line(&mut command).unwrap();
-    println!("{}: command not found",command.trim());
+        let mut command = String::new();
+        io::stdin().read_line(&mut command).unwrap();
+        println!("{}: command not found",command.trim());
+    }
 }