Problem while executing unix command having \&\& symbol

Question

Hi All,
Please check the below program while is not executing, when the unix command's having \&\& is used.
The following command copies the src folder to dest folder with out data loss ...
import java.io.*;
import java.util.*;
public class Sample
  public static void main(String[] args)
     try {
          String ExCmd     =     "ssh [email protected] cd /u01/11510/devdb/9.2.0/slax \\&\\& /bin/tar cf - . | ssh [email protected] cd /d01/AppsTest/testappl2 \\&\\& /bin/tar -xf - > test.log";
          System.out.println("Command to execute : "+ExCmd);
          Process SshProc = (Runtime.getRuntime()).exec(ExCmd);
        // any error message?
          StreamReader errorStream = new StreamReader(SshProc.getErrorStream(), "DEBUG");           
        // any output?
          StreamReader outputStream = new StreamReader(SshProc.getInputStream(), "OUTPUT");
        // kick them off
          errorStream.start();
          outputStream.start();
          int pp =SshProc.waitFor();
          System.out.println("command execution value: "+pp);
     }catch(Exception e) {
          e.printStackTrace();
class StreamReader extends Thread
    InputStream is;
    String type;
    StreamReader(InputStream is, String type)
        this.is = is;
        this.type = type;
    public void run()
        try
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line=null;
            while ( (line = br.readLine()) != null) {
                System.out.println(type + ">" + line);   
        } catch (IOException ioe)
            ioe.printStackTrace(); 
}When this is executed iam getting process value as "0".
But nothing is copying to target ..
So to resolve this i have created a script .. and passed arguments to that script and chaged command as follows :
String ExCmd = "sh /home/juser/movedir.sh [email protected] /u01/11510/devdb/9.2.0/slax /bin/tar [email protected] /d01/AppsTest/testappl2 /bin/tar /home/juser/test";
Then it is executing fine. But in my scenario iam restricted to use scripts.
So plz can any body have a solution for this.
Thanks, SN

Answer 1

Iam unable to execute command with &&, it's executing fine only from \&\& ... Can any body tell me how can we make below code as generic, depending on UNIX Shell environment?
String[] ExCmd     = {"sh", "-c", "ssh [email protected] cd /u01/11510/devdb/9.2.0/slax \\&\\& /bin/tar cf - . | ssh [email protected] cd /d01/AppsTest/testappl2 \\&\\& /bin/tar -xf - > test.log"};
Process SshProc = Runtime.getRuntime().exec(ExCmd);"sh" should be changed here depending on UNIX Environment, because previously i found that in some unix environment's "sh" is not working ..
So can any one help...
Thank in advance.