Source: Writerside
A reference article is information-oriented. It provides a structured description of a product: its APIs, classes, functions, configuration options, actions, and so on. Start with a summary of what this reference article is about, and what the items you are describing are used for.
Command
Syntax:
cmd [OPTIONS]Options
Describe what each option is used for:
-o, —open : Opens a file.
-c, —close : Closes a file.
-v, —version : Displays version information.
-h, —help : Displays help.