There is a command group 'az_storage_blob'. This group of commands could 'manage object storage for unstructured data  blobs'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_storage_blob_update'.The syntax is: az storage blob update --container-name
                       --name
                       [--account-key]
                       [--account-name]
                       [--auth-mode {key, login}]
                       [--clear-content-settings {false, true}]
                       [--connection-string]
                       [--content-cache]
                       [--content-disposition]
                       [--content-encoding]
                       [--content-language]
                       [--content-md5]
                       [--content-type]
                       [--if-match]
                       [--if-modified-since]
                       [--if-none-match]
                       [--if-unmodified-since]
                       [--lease-id]
                       [--sas-token]
                       [--timeout]. The parameter '--container-name -c' is required. It is used to the container name.. The parameter '--name -n' is required. It is used to the blob name.. The parameter '--account-key' is optional. storage account key. must be used in conjunction with storage account name. environment variable: azure_storage_key.. The parameter '--account-name' is optional. storage account name. related environment variable: azure_storage_account. must be used in conjunction with either storage account key or a sas token. if neither are present, the command will try to query the storage account key using the authenticated azure account. if a large number of storage commands are executed the api quota may be hit.. The parameter '--auth-mode' is optional. the mode in which to run the command. "login" mode will directly use your login credentials for the authentication. the legacy "key" mode will attempt to query for an account key if no authentication parameters for the account are provided. environment variable: azure_storage_auth_mode.. The parameter '--clear-content-settings' is optional. if this flag is set, then if any one or more of the following properties (--content-cache-control, --content-disposition, --content-encoding, --content-language, --content-md5, --content-type) is set, then all of these properties are set together. if a value is not provided for a given property when at least one of the properties listed below is set, then that property will be cleared.. The parameter '--connection-string' is optional. storage account connection string. environment variable: azure_storage_connection_string.. The parameter '--content-cache --content-cache-control' is optional. the cache control string.. The parameter '--content-disposition' is optional. conveys additional information about how to process the response payload, and can also be used to attach additional metadata.. The parameter '--content-encoding' is optional. the content encoding type.. The parameter '--content-language' is optional. the content language.. The parameter '--content-md5' is optional. the content's md5 hash.. The parameter '--content-type' is optional. the content mime type.. The parameter '--if-match' is optional. an etag value, or the wildcard character (*). specify this header to perform the operation only if the resource's etag matches the value specified.. The parameter '--if-modified-since' is optional. commence only if modified since supplied utc datetime (y-m-d't'h:m'z').. The parameter '--if-none-match' is optional. an etag value, or the wildcard character (*). specify this header to perform the operation only if the resource's etag does not match the value specified. specify the wildcard character (*) to perform the operation only if the resource does not exist, and fail the operation if it does exist.. The parameter '--if-unmodified-since' is optional. commence only if unmodified since supplied utc datetime (y-m-d't'h:m'z').. The parameter '--lease-id' is optional. required if the blob has an active lease.. The parameter '--sas-token' is optional. a shared access signature (sas). must be used in conjunction with storage account name. environment variable: azure_storage_sas_token.. The parameter '--timeout' is optional. request timeout in seconds. applies to each call to the service.. 