# .NET CLI overview

This article applies to: ✔️ .NET Core 2.1 SDK and later versions

The .NET command-line interface (CLI) is a cross-platform toolchain for developing, building, running, and publishing .NET applications.

The .NET CLI is included with the .NET SDK. For more information about how to install the .NET SDK, see Install .NET Core.

## CLI commands

The following commands are installed by default:

### Tool management commands

Tools are console applications that are installed from NuGet packages and are invoked from the command prompt. You can write tools yourself or install tools written by third parties. Tools are also known as global tools, tool-path tools, and local tools. For more information, see .NET tools overview.

## Command structure

CLI command structure consists of the driver ("dotnet"), the command, and possibly command arguments and options. You see this pattern in most CLI operations, such as creating a new console app, and running it from the command line. The following commands show when the console app was run from a directory named my_app:

dotnet new console
dotnet build --output ./build_output
dotnet ./build_output/my_app.dll


### Driver

The driver is named dotnet and has two responsibilities, either running a framework-dependent app or executing a command.

To run a framework-dependent app, specify the app after the driver, for example, dotnet /path/to/my_app.dll. When executing the command from the folder where the app's DLL resides, just execute dotnet my_app.dll. If you want to use a specific version of the .NET runtime, use the --fx-version <VERSION> option. For more information, see the dotnet command.

When you supply a command to the driver, dotnet.exe starts the CLI command execution process. For example:

dotnet build


First, the driver determines the version of the SDK to use. If there's no global.json file, the latest version of the SDK available is used. Depending on what is latest on the machine, the SDK's version might be either a preview or stable version. After the SDK version is determined, it executes the command.

### Command

The command performs an action. For example, dotnet build builds code. dotnet publish publishes code. The commands are implemented as a console application using a dotnet {command} convention.

### Arguments

The arguments you pass on the command line are the arguments to the command invoked. For example, when you execute dotnet publish my_app.csproj, the my_app.csproj argument indicates the project to publish and is passed to the publish command.

### Options

The options you pass on the command line are the options to the command invoked. For example, when you execute dotnet publish --output /build_output, the --output option and its value are passed to the publish command.