I have my base folder (let's call it base).

I have a bunch of folders inside, scattered at various depths within these folders are cache folders.

I want to delete all files from within the cache folders, but not the folders themselves.

I have tried

cd base

#then one of...

sudo rm -rf cache/*

sudo rm -rf *cache/*

sudo rm -rf cache*/*

sudo rm -rf *cache*/*

But really am just guessing, what would be the right command?