List Storage

gcloud storage ls gs://bucket

Copy/Delete file

gcloud storage cp file gs://bucket
gcloud storage rm gs://bucket/file

Get CORS

gcloud storage buckets describe gs://bucket --format="default(cors_config)"

Set CORS

cors.json

[
  {
    "origin": ["*"]
  }
]

gcloud storage buckets update gs://bucket --cors-file=cors.json

Clear CORS

gcloud storage buckets update gs://bucket --clear-cors