Java与bash程序交互出问题

今天试了一下，发现在调用dos,bash的程序时，不能很好的获得输出流。

public class MainEntry ...{

    /** *//**
     * @param args
     */
    public static void main(String[] args) ...{
        
        try ...{
            Process installProcess = Runtime.getRuntime().exec("./install.bin -console | tee install.log");
            
            InputStream inputStream = installProcess.getInputStream();
            BufferedReader inputBuffer = new BufferedReader(new InputStreamReader(inputStream));
            
            while (true )
            ...{
                boolean isInputReady = inputBuffer.ready();
                if (isInputReady == false)
                ...{
                    Thread.sleep(5000);
                    System.out.println("No Input");
                    continue;
                }
                String inputLine = inputBuffer.readLine();
                while(inputLine != null || inputLine != "")
                ...{
                    System.out.println(inputLine);
                    Thread.sleep(2000);
                }
            }
            
            
        
        } catch (Exception e) ...{
        
            e.printStackTrace();
        }

    }

}