Using java to get the current process owner

Question

I want to know the owner of current process in Unix using Java. I want to find the current server's owner name. I tried with running "who am i" command in Runtime.getRuntime().exec(), but its not returning me any results. ``` String line = ""; Process p = Runtime.getRuntime().exec("who am i"); InputStream iStream = p.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(iStream); BufferedReader bufReader = new BufferedReader(inputStreamReader); while ((line = bufReader.readLine()) != null) { System.out.println("Input "+line); } ``` Is there anything wrong with this code or any idea how can I find the owner of current process using Java?

Accepted Answer

First thing, I think `System.getProperty("user.name")` should work for that

Second thing, the reason your code is not returning anything is because the command is `whoami` with NO SPACES so your exec line should be (assuming you are running on windows through cygwin or on a **nix based system)

```
Process p = Runtime.getRuntime().exec("whoami");
```

Using java to get the current process owner

Solution

Problem