Magento2 Cli Commands, and how to create your own

Magento2 has a large number of commands that make it really simple to manage but not only that, it also can create your very own commands, and this is awesome!.

A new Magento2 feature its console component.

The Root folder now contains a new directory – /bin, and there's a ‘magento’ script inside, used to start the console component. By typing bin/magento on the terminal, we receive some commands we can run like the following:

• create an admin user (admin:user:create).
• clear, disable, enable cache (cache:clean, cache:enable, cache:disable, etc.).
• run cron (cron:run).
• enable and disable modules (module:enable, module:disable).
• check indexer status, and reindex if needed (indexer:info, indexer:reindex, etc.).
• and many more.

This is a major improvement when compared to Magento1, although this one was borrowed from Symfony, Cool Magento!.

This is a list of the most common Cli commands:

php bin/magento setup:upgrade

php bin/magento cache:clean

php bin/magento cache:flush

php bin/magento cache:status

php bin/magento cache:enable [cache_type]

php bin/magento cache:disable [cache_type]

php bin/magento setup:static-content:deploy

php bin/magento setup:static-content:deploy en_US

php bin/magento indexer:reindex

php bin/magento indexer:info

php bin/magento indexer:status

php bin/magento module:status

php bin/magentomodule:enable Namespace_Module

php bin/magento module:disable Namespace_Module

php bin/magento module:uninstall Namespace_Module

php bin/magentodeploy:mode:setdeveloper

php bin/magentodeploy:mode:set production

php bin/magentosetup:di:compile

Now, we'll see how to add a new console command into magento2 console CLI.

Step 1: Defining a command on di.xml

File: app/code/Magmalabs/HelloWorld/etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
   <type name="Magento\Framework\Console\CommandList">
       <arguments>
           <argument name="commands" xsi:type="array">
                   <item name="magentoSayHello" xsi:type="object">Magmalabs\HelloWorld\Console\Sayhello</item>
          </argument>
       </arguments>
   </type>
</config> 

Step 2: Creating a command class

File: app/code/Magmalabs/HelloWorld/Console/Sayhello.php

namespace Magmalabs\HelloWorld\Console;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class Sayhello extends Command
{
   protected function configure()
   {
       $this->setName('magento:sayhello');
       $this->setDescription('Demo command line');
   }
   protected function execute(InputInterface $input, OutputInterface $output)
   {
       $output->writeln("Hello World");
   }
}

• - configure() method is used to set the name and the description of the magento2 add command line.
• - execute() method will run when we call this command line via console.

And it's done!

Flush Magento cache and type this command:

php magento --list

Our command will be shown here, run the command:

php bin/magento magento:sayHello

and the response is, as expected:

Hello World!

I hope this Magento2 technical note has helped you finding what you were looking for.