c# - cmd process won't execute correct command -

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i'm working on project "send" command cmd.exe , receive output. command need file path -k , url. have following code (names , values changed):

    string path = "c:\users\program.exe"     string pathcustom = "\"" + path + "\"";        //the path needs in quotation marks      process p = new process();     p.startinfo.filename = "cmd.exe";     p.startinfo.useshellexecute = false;      string address = "1.2.3"      string command = pathcustom + " " + "-k" + " " + "https://username:passwort@serveradress" + address;        //serveradress url      p.startinfo.arguments = "/c " + command;     p.startinfo.redirectstandardoutput = true;     p.start();      string returnvalue = p.standardoutput.readtoend();

this code working fine want be, need methode thats similar except address looks different. in code above 1.2.3 int following method address has (including backslashes , quotation marks) \"ab:cd:de\" let's pretend is

    string path = "c:\users\program.exe"     string pathcustom = "\"" + path + "\"";              process p = new process();     p.startinfo.filename = "cmd.exe";     p.startinfo.useshellexecute = false;      string address = @"\""ab:cd:de\""";      string command = pathcustom + " " + "-k" + " " + "https://username:passwort@serveradress" + address;              p.startinfo.arguments = "/c " + command;     p.startinfo.redirectstandardoutput = true;     p.start();      string returnvalue = p.standardoutput.readtoend();

when rewrite code cmd stays open, first method ouput want/expect. second, not working, method, sends command cmd , executes it, writes "message" command either written wrong or couldn't found. when take same code (via streamwriter write command cmd textfile) , copy cmd, executes should. basically, doesn't work if execute command via c#. please help

you have wait application exit use p.waitforexit(milliseconds) or check p.hasexited


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