gsutil
    ...options...
        https://cloud.google.com/storage/docs/gsutil/addlhelp/TopLevelCommandLineOptions
        https://cloud.google.com/storage/docs/gsutil/addlhelp/WildcardNames
        https://cloud.google.com/storage/docs/request-endpoints
    mb
        https://cloud.google.com/storage/docs/gsutil/commands/mb
        https://cloud.google.com/storage/docs/creating-buckets
    cp
        https://cloud.google.com/storage/docs/gsutil/commands/cp
        https://cloud.google.com/storage/docs/uploading-objects
        https://cloud.google.com/storage/docs/gsutil/addlhelp/ScriptingProductionTransfers
        https://cloud.google.com/storage/docs/folders
    rsync
        https://cloud.google.com/storage/docs/gsutil/commands/rsync
    ls
        https://cloud.google.com/storage/docs/gsutil/commands/ls
        https://cloud.google.com/storage/docs/listing-buckets
    rm
        https://cloud.google.com/storage/docs/gsutil/commands/rm
        https://cloud.google.com/storage/docs/deleting-buckets
    du
        https://cloud.google.com/storage/docs/getting-bucket-information
    ...moving... cp+rm
        https://cloud.google.com/storage/docs/moving-buckets
    label
        https://cloud.google.com/storage/docs/using-bucket-labels
    defstorageclass
        https://cloud.google.com/storage/docs/changing-default-storage-class
    iam
        https://cloud.google.com/storage/docs/gsutil/commands/iam
    defacl
        https://cloud.google.com/storage/docs/gsutil/commands/defacl