GCS

Buckets

# Bucket operations
gcloud storage buckets create gs://BUCKET_NAME --location=asia-southeast1
gcloud storage buckets list
gcloud storage buckets describe gs://BUCKET_NAME
gcloud storage buckets delete gs://BUCKET_NAME

# Bucket settings
gcloud storage buckets describe gs://BUCKET_NAME \
    --format="value(uniformBucketLevelAccess.enabled)"
gcloud storage buckets update gs://BUCKET_NAME --uniform-bucket-level-access

# Bucket IAM
gcloud storage buckets add-iam-policy-binding gs://BUCKET_NAME \
    --member="allUsers" \
    --role="roles/storage.objectViewer"
gcloud storage buckets get-iam-policy gs://BUCKET_NAME

Objects

gcloud storage cp LOCAL_FILE gs://BUCKET_NAME/
gcloud storage cp gs://BUCKET_NAME/FILE ./
gcloud storage cp -r gs://BUCKET_SRC/ gs://BUCKET_DST/
gcloud storage ls gs://BUCKET_NAME/
gcloud storage rm gs://BUCKET_NAME/FILE

Reference:

1. Official Website