php bin/console make:subscriber

Creates a new event subscriber class

Usage

make:subscriber [<name> [<event>]]

Arguments

name    Choose a class name for your event subscriber (e.g. <fg=yellow>ExceptionSubscriber</>) 
event   What event do you want to subscribe to? 

Help

The make:subscriber command generates a new event subscriber class.

php bin/console make:subscriber ExceptionSubscriber

If the argument is missing, the command will ask for the class name interactively.