[Q#18708087][A#18708275] How to execute bash command with sudo privileges in Java?

https://stackoverflow.com/q/18708087

I'm using ProcessBuilder to execute bash commands: But I want to make something like this: 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

https://stackoverflow.com/a/18708275

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…

APIzation

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();
}

package com.stackoverflow.api;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Human18708275 {

  public static void executeBashCommandWithSudoPrivileges() 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();
  }
}

package com.stackoverflow.api;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * How to execute bash command with sudo privileges in Java?
 *
 * @author APIzator
 * @see <a href="https://stackoverflow.com/a/18708275">https://stackoverflow.com/a/18708275</a>
 */
public class APIzator18708275 {

  public static void executeCommand(String[] cmd) throws IOException {
    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();
  }
}