Printing Runtime exec() OutputStream to console

I believe this is what you're looking for:

  String line;
  Process p = Runtime.getRuntime().exec(...);
  BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
  while ((line = input.readLine()) != null) {
    System.out.println(line);
  }
  input.close();

I faced the similar problem and I am using the following code.

Process p = Runtime.getRuntime().exec(".....");
p.waitFor();

String line;

BufferedReader error = new BufferedReader(new InputStreamReader(p.getErrorStream()));
while((line = error.readLine()) != null){
    System.out.println(line);
}
error.close();

BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
while((line=input.readLine()) != null){
    System.out.println(line);
}

input.close();

OutputStream outputStream = p.getOutputStream();
PrintStream printStream = new PrintStream(outputStream);
printStream.println();
printStream.flush();
printStream.close();

I recently ran into this problem and just wanted to mention that since java 7 the process builder api has been expanded. This problem can now be solved with:

ProcessBuilder pb = new ProcessBuilder("yourcommand");
pb.redirectOutput(Redirect.INHERIT);
pb.redirectError(Redirect.INHERIT);
Process p = pb.start();