<Name>[ <Option>]...[ <Argument>]- Option
- Start and Concatenate with dash
- - Delimit with space
- May require additional value
<Argument>next to it - Require a space or equal sign between option and its argument:
-<Name> <Argument>,--<Name>( |=)<Argument> - Boolean option
- True:
-<Name>,--<Name> - False:
--no-<Name>
- True:
- Short Option:
-<Name>[ <Argument>]- Start with single dash
- Short option that do not need argument can be used immediately next to each other:
-O -L -v<->-OLv
- Long Option:
--<Name>[( |=)<Argument>]- Start with two dash
-h,--help,-?for help
- Start and Concatenate with dash
- Argument
- A value used by command or option
- Meta Char
!:\!for literal!