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Fresh date, add System.CommandLine #40004

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Mar 15, 2024
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Fresh date, add System.CommandLine #40004

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Fresh date, add System.CommandLine
CamSoper Mar 14, 2024
c7681de
I don't want to send them to the library library
CamSoper Mar 14, 2024
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5 changes: 4 additions & 1 deletion docs/csharp/fundamentals/program-structure/main-command-line.md
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@@ -1,7 +1,7 @@
---
title: "Main() and command-line arguments"
description: Learn about Main() and command-line arguments. The 'Main' method is the entry point of an executable program.
ms.date: 05/14/2021
ms.date: 03/14/2024
f1_keywords:
- "main_CSharpKeyword"
- "Main"
Expand Down Expand Up @@ -189,6 +189,9 @@ long num = Convert.ToInt64(s);

For more information, see <xref:System.Int64.Parse%2A> and <xref:System.Convert>.

> [!TIP]
> Parsing command-line arguments can be complex. Consider using the [System.CommandLine](/dotnet/standard/commandline/) library (currently in beta) to simplify the process.
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Given the size of the upcoming breaking changes (dotnet/command-line-api#2338), I'd rather call it alpha.


The following example shows how to use command-line arguments in a console application. The application takes one argument at run time, converts the argument to an integer, and calculates the factorial of the number. If no arguments are supplied, the application issues a message that explains the correct usage of the program.

To compile and run the application from a command prompt, follow these steps:
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