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_delete batch'.The syntax is: az storage blob delete-batch --source
                             [--account-key]
                             [--account-name]
                             [--auth-mode {key, login}]
                             [--connection-string]
                             [--delete-snapshots {include, only}]
                             [--dryrun]
                             [--if-match]
                             [--if-modified-since]
                             [--if-none-match]
                             [--if-unmodified-since]
                             [--lease-id]
                             [--pattern]
                             [--sas-token]
                             [--timeout]. The 1th example of the child command would be to use it to 'delete all blobs ending with   py  in a container that have not been modified for 10 days', the syntax is: date=`date -d "10 days ago" '+%Y-%m-%dT%H:%MZ'`
az storage blob delete-batch -s mycontainer --account-name mystorageaccount --pattern "*.py" --if-unmodified-since $date --auth-mode login. The 2th example of the child command would be to use it to 'delete all the blobs in a directory named  dir  in a container named  mycontainer', the syntax is: az storage blob delete-batch -s mycontainer --pattern "dir/*". The 3th example of the child command would be to use it to 'delete the blobs with the format  cli 2018 xx xx txt  or  cli 2019 xx xx txt  in a container', the syntax is: az storage blob delete-batch -s mycontainer --pattern "cli-201[89]-??-??.txt". The 4th example of the child command would be to use it to 'delete all blobs with the format  cli 201x xx xx txt  except cli 2018 xx xx txt  and  cli 2019 xx xx txt  in a container', the syntax is: az storage blob delete-batch -s mycontainer --pattern "cli-201[!89]-??-??.txt". The parameter '--source -s' is required. It is used to the blob container from where the files will be deleted.. 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 '--connection-string' is optional. storage account connection string. environment variable: azure_storage_connection_string.. The parameter '--delete-snapshots' is optional. required if the blob has associated snapshots.. The parameter '--dryrun' is optional. show the summary of the operations to be taken instead of actually deleting the file(s).. 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 (*).. 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. the active lease id for the blob.. The parameter '--pattern' is optional. the pattern used for globbing files or blobs in the source. the supported patterns are '*', '?', '[seq]', and '[!seq]'. for more information, please refer to https://docs.python.org/3.7/library/fnmatch.html.. 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.. 