gsutil mb gs://new_bucket/
gsutil cp dir/file gs://your_bucket
gsutil cp dir/* gs://your_bucket/dir
gsutil cp dir/*.json gs:://your_bucket/dir
gsutil cp -r special_dir gs://your_bucket
The folder uploaded will exist in gs://your_bucket/special_dir
with all files in it.
gsutil -m cp ...
gsutil rm gs://your_bucket/some.json
gsutil rm gs://your_bucket/dir
gsutil rm gs://your_bucket/**
gsutil -m rm ...
gsutil rm -r gs://your_bucket/
gsutil ls
gsutil ls gs://your_bucket/