Transform "Vendor\FooBundle\Command\BarCommand" transforms to "vendor_foo.command.bar" id

CommandDefinition.php

    /**
     * Transforms "Vendor\FooBundle\Command\BarCommand" transforms to "vendor_foo.command.bar" id
     *
     * @param string $className
     * @return string
     */
    private function convertClassToId($className)
    {
        $id = preg_replace('/^(\w+)\\\(\w+)Bundle.*\\\(\w+)(Command)$/', '$1_$2.$4.$3', $className);

        return strtolower($id);
    }