void assignPermissions(String srcDir,String fileName,Session session){
        String command = "sudo chmod 777 " + srcDir + "/" + fileName;

        try {
            ChannelExec channelExec = (ChannelExec) session.openChannel("exec");
            channelExec.setCommand(command);

            InputStream in = channelExec.getInputStream();

            // Connect to the channel
            channelExec.connect();

            // Read the output of the command (if any)
            BufferedReader reader = new BufferedReader(new InputStreamReader(in));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            reader.close();

            // Wait for the command to finish
            while (!channelExec.isClosed()) {
                Thread.sleep(1000);
            }

            // Check the exit status of the command
            int exitStatus = channelExec.getExitStatus();
            if (exitStatus != 0) {
                // Handle error
                System.out.println("Error executing command. Exit status: " + exitStatus);
            } else {
                System.out.println("Command executed successfully.");
            }

            // Disconnect the channel
            channelExec.disconnect();
        } catch (Exception e) {
            // Handle exception
            e.printStackTrace();
        }
    }