fork(7) download 
  1. import java.io.*;
  2.  
  3. class LinuxInteractor {
  4.  
  5.     static public void main(String[] args) {
  6.         String[] cmdArr = {"ls", "-l"};
  7.         LinuxInteractor.executeCommand(cmdArr);
  8.     }
  9.  
  10.     static public void executeCommand(String[] commandArr) {
  11.         System.out.println("Linux command: " 
  12.                            + java.util.Arrays.toString(commandArr));
  13.  
  14.         try {
  15.             ProcessBuilder pb = new ProcessBuilder(commandArr);
  16.             pb.redirectErrorStream(true);
  17.             Process proc = pb.start();
  18.             BufferedReader in = new BufferedReader(new InputStreamReader(
  19.                     proc.getInputStream()));             
  20.             System.out.println("Process started !");
  21.  
  22.             String line;             
  23.             while ((line = in.readLine()) != null) {
  24.                 System.out.println(line);
  25.             }
  26.  
  27.             proc.destroy();
  28.             System.out.println("Process ended !");
  29.         } catch (Exception x) {
  30.             x.printStackTrace();
  31.         }
  32.     }    
  33. }
Success #stdin #stdout 0.07s 380288KB
comments (?)
stdin 
Standard input is empty
stdout 
Linux command: [ls, -l]
Process started !
total 4
-rw-r--r-- 1 0 110 1981 Jun 11 09:33 tested.zip
Process ended !
https://ideone.com/UUJ3y3
Illustration of answer to http://stackoverflow.com/questions/17038324/cannot-get-the-getinputstream-from-runtime-getruntime-exec.
language:
Java (12.0.1)
created:
11 years ago
visibility:
secret

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