How to Execute complex batch command on the fly

I am looking for a way to run DOS/windows batch directly from C# code without saving it as .BAT file before. I'm mainly interested to run DOS command with a combination of stdin stream.

Let's say I need execute something like that:

echo 'abcd' | programXXX.exe -arg1 --getArgsFromStdIn

After that programXXX.exe will take 'abcd' string as -arg1

What I'm doing now is just create bat file in TMP directory and running it, deleting after execution.

What I need is run it "on the fly" just from .NE开发者_JS百科T code without saving to file previously.

(Main reason is security, but also do not want to leave rubbish when program crashes etc)

Do you know how to achieve that?

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You can use Process.Start.

It will take several parameters, and you can pass through command line parameters to it.

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I would offer two suggestions

1. use redirected IO and launch the program from in your code
2. you can use power shell like in this tutorial

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A switch to PowerShell (PSH) would give you much greater ability to execute commands. PSH executes in process, and multiple command lines can be executed in a single runspace (scope/context) with full control over input and output object pipelines:

var runspace = RunspaceFactory.CreateRunspace();
PSSnapInException pex;
var loadedSnapIn = Runspace.RunspaceConfiguration.AddPSSnapIn(SnapInName, out pex);
runspace.Open();
var pipe = runspace.CreatePipeline(commandline);
var output = pipe.Invoke();

This creates the runspace, loads a snapin (i.e. extra custom commands), sets up a command and executes it, collecting the collection of returned objects.