xiaosi@Qunar:~$ scala
Welcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_91).
Type in expressions for evaluation. Or try :help.
scala> 

xiaosi@Qunar:~$ scala
Welcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_91).
Type in expressions for evaluation. Or try :help.
scala> println("Hello world")
Hello world
scala> 

object Test{
 def main(args: Array[String]){
  println("Hello " + args(0) + " ....")
 }
}

xiaosi@Qunar:~/test$ scalac test.scala 

xiaosi@Qunar:~/test$ ls
sh_env.sh sh_env.sh~ Test.class Test$.class test.scala tomcat-bin-sh

xiaosi@Qunar:~/test$ scala test.scala apple
Hello apple ....
xiaosi@Qunar:~/test$