System.CommandLine Namespace

Provides types for defining commands, options, arguments, and their relationships in command-line applications.

Classes

Name	Description
Argument	A symbol defining a value that can be passed on the command line to a command or option.
Argument<T>	A symbol defining a value that can be passed on the command line to a command or option.
ArgumentValidation	Provides extension methods for Argument.
Command	Represents a specific action that the application performs.
CompletionSourceExtensions	Provides extension methods for working with completion sources.
DiagramDirective	Enables the use of the [diagram] directive, which when specified on the command line will short circuit normal command handling and display a diagram explaining the parse result for the command line input.
Directive	The purpose of directives is to provide cross-cutting functionality that can apply across command-line apps. Because directives are syntactically distinct from the app's own syntax, they can provide functionality that applies across apps. A directive must conform to the following syntax rules: It's a token on the command line that comes after the app's name but before any subcommands or options. It's enclosed in square brackets. It doesn't contain spaces.
EnvironmentVariablesDirective	Enables the use of the [env:key=value] directive, allowing environment variables to be set from the command line during invocation.
InvocationConfiguration
Option	A symbol defining a named parameter and a value for that parameter.
Option<T>	A symbol defining a named parameter and a value for that parameter.
OptionValidation	Provides extension methods for Option.
ParserConfiguration	Represents the configuration used by the CommandLineParser.
ParseResult	Describes the results of parsing a command line input based on a specific parser configuration.
RootCommand	Represents the main action that the application performs.
Symbol	Defines a named symbol that resides in a hierarchy with parent and child symbols.
VersionOption	A standard option that indicates that version information should be displayed for the app.

Structs

Name	Description
ArgumentArity	Defines the arity of an option or argument.