How to run gatling with scala file name without simulation name?

Gatling (Open-Source)
1

I run the gatling with ./gatling.sh -s className command. But class name can be different from simulation file name. For Example The simulation name below is Test,but scala file name can be different.The file name is TestSimulation.scala. How can I run the simulation with file name?

 import io.gatling.core.Predef._
 import io.gatling.http.Predef._
 import scala.concurrent.duration._

 class Test extends Simulation {
   val httpConf = http.baseURL("url")
   var scn = scenario("Test")
        .exec(
            http("My Other Request")
              .get("/1")
   )

   setUp(scn.inject(rampUsers(2000) over  (200 seconds)).protocols(httpConf))
 }