adding arguments to process not working?

Question

I got this program written in C# WinForms.

im using system.diagnostic to create a CMD process. with that cmd i want some arguments but they are not present or working :S dont know why ?!

NOTE: im not sure how to use more than 1 argument, correct me if im wrong :D im trying to replicate the "copy /b %filename% lpt1" command....

here is my code:

    public void OutputBtn_Process_Click(object sender, EventArgs e)
    {
        foreach (FileInfo fi in listBox1.Items)
        {
            Process process1 = new Process();
            process1.StartInfo.UseShellExecute = false;
            process1.StartInfo.Arguments = "copy /b myfile.txt test.txt";
            //process1.StartInfo.LoadUserProfile = true;
            process1.StartInfo.FileName = "cmd.exe";
            process1.StartInfo.WorkingDirectory = Path.GetDirectoryName(fi.FullName);
            process1.Start();
        }
    }

NOTE: i just added the test.txt instead of LPT1 for testing purpose. — Mikkel Eriksen
– Mikkel Eriksen, Commented Aug 17, 2012 at 18:47
That's correct, you just need the "/c" as the first parameter. — Ted Spence
– Ted Spence, Commented Aug 17, 2012 at 18:56
Do you actually have FileInfo instances being retrieved from listbox1.Items? — rene
– rene, Commented Aug 17, 2012 at 18:58
yeap. so far it works :) without path.GetdirectoryName it would'nt work sayin something like" path is invalid" — Mikkel Eriksen
– Mikkel Eriksen, Commented Aug 17, 2012 at 19:00
but that also opens up for my next question. how do I add in my file names into to cmd line ?? — Mikkel Eriksen
– Mikkel Eriksen, Commented Aug 17, 2012 at 19:01

Hassan Boutougha · Accepted Answer · 2012-08-17 18:50:59Z

1

string strCmdText;
strCmdText= "/C copy /b myfile.txt test.txt";
System.Diagnostics.Process.Start("CMD.exe",strCmdText);

answered Aug 17, 2012 at 18:50

Hassan Boutougha

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Comments

rene · Accepted Answer · 2012-08-17 18:56:24Z

0

Try this

 process1.StartInfo.Arguments = "/C \"copy /b myfile.txt LPT1:\"";

The documentation on Windows 7 command-line tool cmd.exe

edited Aug 17, 2012 at 18:56

answered Aug 17, 2012 at 18:51

rene

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1 Comment

Mikkel Eriksen Over a year ago

thanks. it sure did something now. the CMD windows pops up quick and closes again saying that LPT1 is not recognize device. but thats probably cause I dont have LPT port in my laptop.

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