init cli

src/main.rs

@@ -3,20 +3,28 @@ fn main() {
   let app = App::new("sclient")
     .arg(Arg::with_name("pattern")
       .long("pattern")
-      .takes_value(true));
+      .takes_value(true)
+      .required(true)
+      )
+      .arg(Arg::with_name("servername")
+      .long("servername")
+      .takes_value(true)
+      .required(true)
+      )
+      .arg(Arg::with_name("k")
+      .short("k")
+      .takes_value(true)
+      .required(true)
+      );
     // println!("Hello, world!");
 //
 let matches = app.get_matches();
-    // let pattern = std::env::args().nth(1).expect("no pattern given");
-    // let path = std::env::args().nth(2).expect("no path given");
-  //   let args = Cli {
-  //     pattern: pattern,
-  //     //path: std::path::PathBuf::from(path),
-  // };
     println!("{}",matches.value_of("pattern").unwrap());
 }
 
 // cargo run test
+// cargo build
+// cargo run -- --help
 // target/debug/sclient --help
 // target/debug/sclient --pattern=kevin