cowsay is like hello world

src/main.rs

@@ -0,0 +1,10 @@
+use std;
+mod cow;
+
+fn main() {
+    let args: Vec<String> = std::env::args().collect();
+
+    let c = cow::Cow::new(args[1..].join(" "));
+
+    println!("{}", c)
+}