How to access command line arguments in .csx script?

CSI has an Args global which parses out the arguments for you. For most cases, this will get you the arguments you wanted as if you were accessing argv in a C/C++ program or args in the C# Main() signature static void Main(string[] args).

Args has a type of IList<string> rather than string[]. So you will use .Count to find the number of arguments instead of .Length.

Here is some example usage:

#!/usr/bin/env csi
Console.WriteLine($"There are {Args.Count} args: {string.Join(", ", Args.Select(arg => $"“{arg}”"))}");

And some example invocations:

ohnob@DESKTOP-RC0QNSG MSYS ~/AppData/Local/Temp
$ ./blah.csx
There are 0 args:

ohnob@DESKTOP-RC0QNSG MSYS ~/AppData/Local/Temp
$ ./blah.csx hi, these are args.
There are 4 args: “hi,”, “these”, “are”, “args.”

ohnob@DESKTOP-RC0QNSG MSYS ~/AppData/Local/Temp
$ ./blah.csx 'hi, this is one arg.'
There are 1 args: “hi, this is one arg.”

Here is my script:

    var t = Environment.GetCommandLineArgs();
    foreach (var i in t)
        Console.WriteLine(i);

To pass in arguments to csx:

    scriptcs hello.csx -- arg1 arg2 argx

Prints out:

    hello.csx
    --
    arg1
    arg2
    argx

Key is '--' between csx and script arguments.