run script and cp stdin and stdout

example.sh

echo x - ScriptRunner.java
cat >ScriptRunner.java <<'!Funky!Stuff!'

import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Ted
 */
public class ScriptRunner {

    public static void main(String[] args) throws Exception {
        if (args.length == 0) {
            System.err.println("Usage: ScriptRunner myscript parameter...");
        }
        ScriptRunner runner = new ScriptRunner();
        runner.run(args);
    }

    public int run(String[] args) throws Exception {

        Process child = new ProcessBuilder(args).redirectErrorStream(true).start();
        //subprocess reads input from a pipe via the output stream returned by Process.getOutputStream()
        Thread readIn=plugTogether(System.in, child.getOutputStream());
        Thread writeOut=plugTogether(child.getInputStream(), System.out);
        int returnValule = child.waitFor();
        if (returnValule != 0) //failed
        {
            System.err.println("failed with exit value: " + returnValule);
        }else{
            System.out.println("Script successfully finished\n");
        }
        //stop the threads
        writeOut.interrupt();
        readIn.interrupt();
        return returnValule;
    }

    private Thread plugTogether(InputStream fin, OutputStream fout) throws Exception {
        Thread workThread = new CopyWorker(fin, fout);
        workThread.start();
        return workThread;
    }

    class CopyWorker extends Thread {

        final InputStream in;
        final OutputStream out;

        public CopyWorker(InputStream in, OutputStream out) {
            this.in = in;
            this.out = out;
        }

        public void run() {
            Thread thisThread = Thread.currentThread();
            int c;
            try {
                while (!thisThread.isInterrupted() && (c=in.read()) !=-1) {
                    out.write(c);
                    out.flush();
                    thisThread.sleep(2);
                }
            } catch (IOException ex) {
                Logger.getLogger(ScriptRunner.class.getName()).log(Level.SEVERE, null, ex);
            }catch (InterruptedException ex){
                System.out.println("cancel thread");
            }
        }
    }
}
!Funky!Stuff!
echo x - choice.sh
cat >choice.sh <<'!Funky!Stuff!'
echo "continue?"
choices="yes no"
select name  in $choices
do
	if [ "$name" = "yes" ]; then
        echo "working .."
		echo "continue?"		
	else
		echo "exit."
        break
	fi
done
!Funky!Stuff!