Update README.md

README.md

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 # service_account_maker
+Usage: sa_maker.py [OPTIONS] COMMAND [ARGS]...
+
+ service_account_maker
+
+```
+Options:
+ --version Show the version and exit.
+ -v, --verbose Adjust the logging level
+ --config-path FILE Configuration filepath [default:
+ /root/gdsa_maker/config.json]
+ --log-path FILE Log filepath [default: /root/gdsa_maker/activity.log]
+ --token-path FILE Token filepath [default: /root/gdsa_maker/token.json]
+ --help Show this message and exit.
+
+Commands:
+ authorize Authorize Google Account
+ create-accounts Create service accounts
+ create-group Create group
+ create-teamdrive Create teamdrive
+ list-accounts Retrieve existing service accounts
+ list-group-users Lists users for a group
+ list-groups Retrieve existing groups
+ list-teamdrive-users Lists users for a teamdrive
+ list-teamdrives Retrieve existing teamdrives
+ remove-group Remove a group
+ remove-teamdrive-users Remove users from a teamdrive
+ set-group-users Set users for a group
+ set-teamdrive-users Set users for a teamdrive
+ 
+Args:
+ --name, -n Name prefix
+ --amount, -a Amount of service accounts to create
+ --domain, -d Domain of the G Suite account
+ --key-prefix, -k Name prefix of service accounts
+ ```
+
+ Basic command:
+
+ ```python3 sa_maker.py create-accounts -n <prefix_of_sa> -a <number_of_sa_to_create>```
+