How to user JSON File as input

[joergrenn]

Some CLI commands take JSON as input for parameters.
The documentation says that instead of giving the JSON as a string directly in the commandline also a JSON file can be used.
For example: --rules: RULES_JSON|@RULES_JSON_FILE, rules for the ACL in JSON or JSON file.
Can you give an example how this works?
ibmcloud is network-acl-create --rules "testfile.json" does not work.

[vickmuir]

Yu need to provide the path to the file in the command
ibmcloud is network-acl-create --rules ~/Documents/testfile.json