How do I git clone --recursive and checkout master on all submodules in a single line?

Question

I really like this command to fetch a repo with submodules:

git clone git@github.com:my_user/my_repo.git --recursive

However, the submodule

Answer 1

How about:

git submodule update --init --recursive

To initialize all submodules and submodules inside submodules. Not sure if this will checkout master though.