How to Open Command Prompt (Windows 10, 8, 7, etc.)

If the executable for your program is “My Program” in directory “c:My Directory” then to execute that program within a batch file, use

"C:My DirectoryMy Program"

or

"C:My DirectoryMy Program.exe"

or

START "" "C:My DirectoryMy Program"

or equally

START "" "C:My DirectoryMy Program.exe"

Use the START version if you want your batch to continue to the next line once it has started the program.

The "" in the start version is the window title. You can place any window title you want within those quotes, but should not omit that "titling" pair.

It’s very simple to make a mysqldump in cmd on windows, simply:

Open cmd and put type mysqldump uroot ppassword database > c:/data.sql

This results in an SQL dump file for the desired database.

I’m writing a console application so I may run this command:

-uroot -ppass databse  > locationdata.sql

I tried the following code to no avail:

System.Diagnostics.ProcessStartInfo procStartInfo =
    new System.Diagnostics.ProcessStartInfo("cmd", "/c "   cmd); 

How might I start a cmd process and send my command successfully?

QProcess::startDetached will take the first parameter as the command to execute and the following parameters, delimited by a space, will be interpreted as separate arguments to the command.

Therefore, in this case: –

QProcess::startDetached("cmd /c net stop "MyService"");

The function sees cmd as the command and passes /c, net, stop and “MyService” as arguments to cmd. However, other than /c, the others are parsed separately and are not valid arguments.

What you need to do is use quotes around the “net stop “MyService” to pass it as a single argument, so that would give you: –

QProcess::startDetached("cmd /c "net stop "MyService""");

Alternatively, using the string list you could use: –

QProcess::startDetached("cmd", QStringList() << "/c" << "net stop "MyService"");

Similar to some of the other solutions above, I created an elevate batch file which runs an elevated PowerShell window, bypassing the execution policy to enable running everything from simple commands to batch files to complex PowerShell scripts. I recommend sticking it in your C:WindowsSystem32 folder for ease of use.

The original elevate command executes its task, captures the output, closes the spawned PowerShell window and then returns, writing out the captured output to the original window.

I created two variants, elevatep and elevatex, which respectively pause and keep the PowerShell window open for more work.

https://github.com/jt-github/elevate

And in case my link ever dies, here’s the code for the original elevate batch file:

@Echo Off
REM Executes a command in an elevated PowerShell window and captures/displays output
REM Note that any file paths must be fully qualified!

REM Example: elevate myAdminCommand -myArg1 -myArg2 someValue

if "%1"=="" (
    REM If no command is passed, simply open an elevated PowerShell window.
    PowerShell -Command "& {Start-Process PowerShell.exe -Wait -Verb RunAs}"
) ELSE (
    REM Copy command arguments (passed as a parameter) into a ps1 file
    REM Start PowerShell with Elevated access (prompting UAC confirmation)
    REM     and run the ps1 file
    REM     then close elevated window when finished
    REM Output captured results

    IF EXIST %temp%trans.txt del %temp%trans.txt
    Echo %* ^> %temp%trans.txt *^>^&1 > %temp%tmp.ps1
    Echo $error[0] ^| Add-Content %temp%trans.txt -Encoding Default >> %temp%tmp.ps1
    PowerShell -Command "& {Start-Process PowerShell.exe -Wait -ArgumentList '-ExecutionPolicy Bypass -File ""%temp%tmp.ps1""' -Verb RunAs}"
    Type %temp%trans.txt
)

This may be a bit of a read so im sorry in advance. And this is my tried and tested way of doing this, there may be a simpler way but this is from me throwing code at a wall and seeing what stuck

If it can be done with a batch file then the maybe over complicated work around is have c# write a .bat file and run it. If you want user input you could place the input into a variable and have c# write it into the file. it will take trial and error with this way because its like controlling a puppet with another puppet.

here is an example, In this case the function is for a push button in windows forum app that clears the print queue.

using System.IO;
using System;

   public static void ClearPrintQueue()
    {

        //this is the path the document or in our case batch file will be placed
        string docPath =
         Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
        //this is the path process.start usues
        string path1 = docPath   "\Test.bat";

        // these are the batch commands
        // remember its "", the comma separates the lines
        string[] lines =
        {
            "@echo off",
            "net stop spooler",
            "del %systemroot%\System32\spool\Printers\* /Q",
            "net start spooler",
            //this deletes the file
            "del "%~f0"" //do not put a comma on the last line
        };

        //this writes the string to the file
        using (StreamWriter outputFile = new StreamWriter(Path.Combine(docPath, "test.bat")))
        {
            //This writes the file line by line
            foreach (string line in lines)
                outputFile.WriteLine(line);
        }
        System.Diagnostics.Process.Start(path1);

    }

IF you want user input then you could try something like this.

This is for setting the computer IP as static but asking the user what the IP, gateway, and dns server is.

you will need this for it to work

public static void SetIPStatic()
    {
//These open pop up boxes which ask for user input
        string STATIC = Microsoft.VisualBasic.Interaction.InputBox("Whats the static IP?", "", "", 100, 100);
        string SUBNET = Microsoft.VisualBasic.Interaction.InputBox("Whats the Subnet?(Press enter for default)", "255.255.255.0", "", 100, 100);
        string DEFAULTGATEWAY = Microsoft.VisualBasic.Interaction.InputBox("Whats the Default gateway?", "", "", 100, 100);
        string DNS = Microsoft.VisualBasic.Interaction.InputBox("Whats the DNS server IP?(Input required, 8.8.4.4 has already been set as secondary)", "", "", 100, 100);



        //this is the path the document or in our case batch file will be placed
        string docPath =
         Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
        //this is the path process.start usues
        string path1 = docPath   "\Test.bat";

        // these are the batch commands
        // remember its "", the comma separates the lines
        string[] lines =
        {
            "SETLOCAL EnableDelayedExpansion",
            "SET adapterName=",
            "FOR /F "tokens=* delims=:" %%a IN ('IPCONFIG ^| FIND /I "ETHERNET ADAPTER"') DO (",
            "SET adapterName=%%a",
            "REM Removes "Ethernet adapter" from the front of the adapter name",
            "SET adapterName=!adapterName:~17!",
            "REM Removes the colon from the end of the adapter name",
            "SET adapterName=!adapterName:~0,-1!",
//the variables that were set before are used here
            "netsh interface ipv4 set address name="!adapterName!" static "   STATIC   " "   STATIC   " "   DEFAULTGATEWAY,
            "netsh interface ipv4 set dns name="!adapterName!" static "   DNS   " primary",
            "netsh interface ipv4 add dns name="!adapterName!" 8.8.4.4 index=2",
            ")",
            "ipconfig /flushdns",
            "ipconfig /registerdns",
            ":EOF",
            "DEL "%~f0"",
            ""
        };

        //this writes the string to the file
        using (StreamWriter outputFile = new StreamWriter(Path.Combine(docPath, "test.bat")))
        {
            //This writes the file line by line
            foreach (string line in lines)
                outputFile.WriteLine(line);
        }
        System.Diagnostics.Process.Start(path1);

    }

Like I said. It may be a little overcomplicated but it never fails unless I write the batch commands wrong.