I guess most of the users of Symfony2/Zend2 would have used various list of commands for your bundle/module with your app, it may be for installing web assets or generating entity classes for your propel/Doctrine ORM etc..

In my application, we had to start with a new module which doesnt have any pre-defined data in place, and due to some issues we had decided to add the screens at a later stage. And so to proceed further we need to have few dummy data for testing. So instead of creating a html form, i have planned to create my own console command to load dummy data. Apart from that i have to do some calculations over milliseconds as well. I am adding the code for that console command in this tip, hope it will help for those who create a new reusable bundle or generic module that can be integrated with any other web app.

<?php
namespace EF\Bundle\DevBundle\Command;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
class CurrentMillissecondCommand extends ContainerAwareCommand
{     
 

class CurrentMillissecondCommand extends ContainerAwareCommand
{  
   /**      * @see Command      
* configuring the command      */  
   protected function configure()    
{   
      $this
            ->setName('get:current:millis')
            ->setDescription('Get Current milli seconds') ;  
   }

 /**      * @see Command      */   
  protected function execute(InputInterface $input, OutputInterface $output)  
   {   
      //generates a millisecond. default operation in php is [microtime() * 1000]
          $billingexpiration = (\MH\Util\Clock\Millis::now());
        $output->writeln(sprintf(' Result is  <comment>%s</comment>', $billingexpiration));
    }
}

 When you need to enter an input and get a dynamic o/p, then please find my code below that takes input while executing command and returns the number of days added to current millisecond.

<?php
namespace EF\Bundle\DevBundle\Command;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class AddMillissecondCommand extends ContainerAwareCommand
{  
   /**      * @see Command      */     
protected function configure()  
   {      
   $this
            ->setName('add:days:millis')    
            ->setDescription('Add Number of days to milliseconds.')  
            ->setDefinition(array( new InputArgument('days', InputArgument::REQUIRED, 'days'))) ;
    }

    /**      * @see Command      */    
         protected function execute(InputInterface $input, OutputInterface $output)
    {  
       $days   =     $input->getArgument('days');
       $billingexpiration = (\MH\Util\Clock\Millis::now() + (60 * 60 * 24 * $days * 1000));
        $output->writeln(sprintf(' Result is  <comment>%s</comment>', $billingexpiration));    
      }


    /**      * @see Command      */

     protected function interact(InputInterface $input, OutputInterface $output)
    {
        if (!$input->getArgument('days'))
{           
  $days = $this->getHelper('dialog')->askAndValidate( $output, 'Enter the number of days:',
              function($days)
{                     if (empty($days))
{                         throw new \Exception('days can not be empty');
                    }
                    return $days;     
              }            
);  
           $input->setArgument('days', $days);  
       }
      } }

Result:
Please find the resulting o/p on console command as follows.
satheeskumar@sathees-u11:~/Projects/myproject$ php app/console get:current:millis Result is  1355288119966 satheeskumar@sathees-u11:~/Projects/myproject$ php app/console add:days:millis Enter the number of days:5 Result is  1355720145595