How to bulk delete all unread messages in Gmail ?

Some times your gmail gets overloaded by unread emails.And the worst case is you cannot delete them all at once.you have select 20 per time and click and click and click.Uhhh.Thats too lazy

1. Go to your gmail account and type “is:unread label:Inbox” (without quotes) in the search box and search your own email
2. Then gmail will show all of your unread messages.But still you cant bulk delete them all at once
3. And now Go to select button and click on “All”
4. Now you will see a notification that says “select all conversations that match this search”
5. Now click on it and just press move to trash button
6. Thats all (and if you want to delete them completely , click on empty trash)