dotnet
command-line-api
C#

Command line parsing, invocation, and rendering of terminal output.

Last updated Jul 9, 2026
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README

Build Status Join the chat at https://gitter.im/dotnet/command-line-api

This repository contains the code for the System.CommandLine libraries and the dotnet-suggest global tool.

Packages

Package | Version | Description ---------------------------------| ------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------- System.CommandLine | Nuget | Command line parser, model binding, invocation, shell completions dotnet-suggest | Nuget | A command-line tool to provide shell completions for apps built using System.CommandLine.

Daily Builds

Daily builds are available if you add this feed to your nuget.config: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-libraries/nuget/v3/index.json

Versions are listed at: https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet-libraries/NuGet/System.CommandLine/versions

Documentation

The System.CommandLine documentation can now be found at Microsoft Learn.

Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information, see the .NET Foundation Code of Conduct

Contributing

See the Contributing guide for developer documentation.

License

This project is licensed under the MIT license.

.NET Foundation

.NET is a .NET Foundation project.

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