Example of gradle task exec

GradleExec.gradle

// First way

task SvnDiif {
  new ByteArrayOutputStream().withStream { os ->
        exec {
            executable = 'svn'
            args = ['diff', '-r', "reviosionNo_from:revisionNo_to", "svn_repo", '--summarize']
            standardOutput = os
        }
        def outputAsString = os.toString()
        println(outputAsString)
}

//Second way

task RunBatfile {
   exec {
          workingDir "D:/Bat"
          commandLine 'cmd', '/c', '<your_bat_file_name>.bat'
        }
}

//Third way

task stopTomcat(type:Exec) {
  workingDir '../tomcat/bin'

  //on windows:
  commandLine 'cmd', '/c', 'stop.bat'

  //on linux
  commandLine './stop.sh'
}

// Fourth way with error handling

def checkExecResult(execResult, failText, standardOutput){
  if (execResult) {
    if (execResult.getExitValue() != 0) {
      throw new GradleException('Non-zero exit value: ' + execResult.getExitValue())
    }
    if (standardOutput.toString().contains(failText)){
    throw new GradleException('"' + failText + '" string in output: ' + standardOutput.toString())
  }
  } else {
    throw new GradleException('Returned a null execResult object')
  }
}

task runApp(dependsOn:':installDebug', type: Exec) {
  def sdkPath = android.getSdkDirectory().getAbsolutePath()
  def adbPath = sdkPath + '\\platform-tools\\adb.exe'
  def activityToRun = '"com.example.myapp/.activities.StartActivity"'
  standardOutput = new ByteArrayOutputStream();
  commandLine adbPath, 'shell', 'am', 'start', activityToRun
    doLast {
            checkExecResult(execResult, 'Error', standardOutput);
      }
}