Thread: How to see intermediate proceess being executed in linux using java

Hi All,

i am running o.s. ubuntu and have posted on 1 forum regarding this but i got partial response to my query.

i want to see the intermediate and the result in execution of a file in linux. i am doing this by making use of Swing's in java. i have following code to execute:-

String[] args = {"/bin/sh",
                              "-c",
                     "/home/nakul/Desktop/srilm/bin/i686/ngram-count -order 2 -text ", s,"-lm Englm.lm -write EngC.count -unk"};
            p1=Runtime.getRuntime().exec(args);
            OutputStream st1=p1.getOutputStream();
            System.out.println(st1);

i want to see the intermediate results generated by execution of the above mentioned file (ngram-count).

Kindly tell howto solve this problem.

Thanks & Regards,

Not sure what you mean by 'intermediate', but have a look at the following article: When Runtime.exec() won't - JavaWorld
It lists how one can go about reading the OutputStream from a Process.

Hi,

i mean that whatever intermediates, outputs, files that are generated by this exec(ngram-count), i want it to use it in java's applet.

Hi,

i was mistaken the executable is not running and it giving following error while running:-

/home/nakul/Desktop/srilm/bin/i686/ngram-count: 1: Syntax error: Bad function name

 
 try
        {
            String[] args = {"/bin/sh","/home/nakul/Desktop/srilm/bin/i686/ngram-count","-text", s,"-order","2","-write","EngC.count","-unk"};
            p1=Runtime.getRuntime().exec(args);
 
 
            OutputStream st1=p1.getOutputStream();
            System.out.println( "");
            System.out.println(st1);
            //jTextArea2.append(toString(st1));
            int i=p1.waitFor();
            int j=p1.exitValue();
 
    if(j==0)
    {
        System.out.println("Command Successful");
    }
            if(i == 0)
    {
        System.out.println(i);
 
        jTextArea1.append("\n");
        /*String[] args1 = {"/bin/sh",
                              "-c",
                     "ls /home/nakul/Desktop/srilm/bin/i686/Englm.lm -al"};
        p2=Runtime.getRuntime().exec(args1);*/
        //jTextArea1.append("Language Model created...");
 
        //p2.wa
        BufferedReader in = new BufferedReader(new InputStreamReader(p1.getInputStream()));
 
        while ((kk = in.readLine()) != null) {
 
           }
        in.close();
    }
 else
    {
BufferedReader stdErr = new BufferedReader(new InputStreamReader(p1.getErrorStream()));
// read the output from the command
while ((s = stdErr.readLine()) != null) {
System.out.println(s);
}              
 
 }
 
        }catch(Exception e){
            System.out.println(e);
        }

So before the executable produce intermediate results first of all it must be running.

Please tell how to solve this problem....