How to execute bash command with sudo privileges in Java?

Question

I'm using ProcessBuilder to execute bash commands:

import java.io.IOException;  public class Main {     public static void main(String[] args) {         try {             Process pb = new ProcessBuilder("gedit").start();         } catch (IOException e) {             e.printStackTrace();         }     } } 

But I want to make something like this:

Process pb = new ProcessBuilder("sudo", "gedit").start(); 

How to pass superuser password to bash?

("gksudo", "gedit") will not do the trick, because it was deleted since Ubuntu 13.04 and I need to do this with available by default commands.

EDIT

gksudo came back to Ubuntu 13.04 with the last update.

Answer 1

I think you can use this, but I'm a bit hesitant to post it. So I'll just say:

Use this at your own risk, not recommended, don't sue me, etc...

public static void main(String[] args) throws IOException {      String[] cmd = {"/bin/bash","-c","echo password| sudo -S ls"};     Process pb = Runtime.getRuntime().exec(cmd);      String line;     BufferedReader input = new BufferedReader(new InputStreamReader(pb.getInputStream()));     while ((line = input.readLine()) != null) {         System.out.println(line);     }     input.close(); } 

Answer 2

Edit /etc/sudoers with visudo and grant your user a NOPASSWD right for a specific script:

username ALL=(ALL) NOPASSWD: /opt/yourscript.sh