I have some code as part of my application which executes a function "shell( String[] params)", which calls the shell prompt with a particular command ( String[] params) on my Ubuntu machine. For example:

2. String[] runTC = {
3.   "/bin/bash",
4.   "-c",
5.   "ipython -noconfirm_exit /home/dir1/dir2/dir3/someprogram.py arg1 arg2"
6. };
7. 
   
9. String pipeOut;
10. 
    
11. void shell(String[] params) {
12.   try {
13.     String line;
14.     OutputStream stdin = null;
15.     Process p = Runtime.getRuntime().exec(params);
16.     BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
17.     while ( (line = input.readLine ()) != null) {
18.       pipeOut = line;
19.     }
20.     input.close();
21.   }
22.   catch (Exception err) {
23.     err.printStackTrace();
24.   }
25. }

I don't recall who I got the bulk of "shell( String[] params)" from, be it on this forum, SE, DaniWeb or somesuch, but it's just standard code that I've adapted for my own use and it works just fine. The problem that I have is that there is an occasion where I call shell() and the python script it runs goes through a very long loop (can be >60 minutes, setting a temperature controller to ramp down slowly). Of course this comes just before a call to exit(). Naturally, I would rather my application (or at least the shell) didn't wait for the python script to finish before calling exit(), so that I can have the application window off the screen while the heater is cooling down. Any ideas on how I could implement this?

Many thanks!