There is a command group 'az_iot_hub_connection string'. This group of commands could 'manage iot hub connection strings'. 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_iot_hub_connection string_show'.The syntax is: az iot hub connection-string show [--all]
                                  [--default-eventhub {false, true}]
                                  [--hub-name]
                                  [--key-type {primary, secondary}]
                                  [--pn]
                                  [--resource-group]. The 1th example of the child command would be to use it to 'show the connection strings for all active state iot hubs in a subscription using the default policy and primary key', the syntax is: az iot hub connection-string show. The 2th example of the child command would be to use it to 'show the connection strings for all active state iot hubs in a resource group using the default policy and primary key', the syntax is: az iot hub connection-string show --resource-group MyResourceGroup. The 3th example of the child command would be to use it to 'show all connection strings of the given iot hub using primary key', the syntax is: az iot hub connection-string show -n MyIotHub --all. The 4th example of the child command would be to use it to 'show the connection string of the given iot hub using the default policy and primary key', the syntax is: az iot hub connection-string show -n MyIotHub. The 5th example of the child command would be to use it to 'show the connection string of the given iot hub using policy  service  and secondary key', the syntax is: az iot hub connection-string show -n MyIotHub --policy-name service --key-type secondary. The 6th example of the child command would be to use it to 'show the eventhub compatible connection string of the given iot hub s default eventhub', the syntax is: az iot hub connection-string show -n MyIotHub --default-eventhub. The parameter '--all --show-all' is optional. show all shared access policies for the respective iot hub.. The parameter '--default-eventhub --eh' is optional. flag indicating the connection string returned is for the default eventhub endpoint. default: false.. The parameter '--hub-name -n' is optional. iot hub name or hostname. required if --login is not provided.. The parameter '--key-type --kt' is optional. shared access policy key type for authentication.. The parameter '--pn --policy-name' is optional. shared access policy with operation permissions for target iot hub entity.. The parameter '--resource-group -g' is optional. name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. 