process - Execute shell script from scala application

Question

I want to execute the sh file from Scala application. Let's say I have createPassword.sh file and I need to invoke this sh file from Scala application and get the output back.

How can I achieve through scala application?

Answer 1

This should do the trick if the script is in the current working directory (otherwise specify the full path of the script)

import sys.process._
val result = "./createPassword.sh" !!

result is then a String containing the standard output (and standard error)

EDIT: If you want to use ProcessBuillder from Java SE7, you can also use this in scala:

  import java.io.{BufferedReader, InputStreamReader}

  val p = new ProcessBuilder("/bin/bash","createPassword.sh")
  val p2 = p.start()
  val br = new BufferedReader(new InputStreamReader(p2.getInputStream()))

  var line:String = ""
  while ({line = br.readLine();  line!= null}) {
    println(line)
  }