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write command to command prompt open via executing bash file

I am working on developing the visual studio plugin. As a part of it, I want to execute one bash file. This bash file opens the command prompt.
Once command prompt is open , we want to write / executes bunch of commands on it.
I have tried it like this:
System.Diagnostics.Process process = System.Diagnostics.Process.Start("MyBash.bat");
process.WaitForExit(5000);
process.StandardInput.WriteLine("echo %PATH%");
But I can see that, it open the command prompt but fail to write command on it.
It throws the exception at the line of writing the command to it. It seems like the command prompt open from this bash file has different process id.
Please help me to resolve it.

Try to execute directly in your batch file:
Insert this to your batch:
start cmd.exe /k "echo %PATH%"
You can also use
/c
if you want to close the cmd After Execution
EDIT:
Process p = new Process();
ProcessStartInfo info = new ProcessStartInfo();
info.RedirectStandardInput = true;
info.UseShellExecute = false;
info.FileName = "mybash.bat";
p.StartInfo = info;
p.Start();
using (StreamWriter sw = p.StandardInput)
{
if (sw.BaseStream.CanWrite)
{
sw.WriteLine("mysql -u root -p");
sw.WriteLine("mypassword");
sw.WriteLine("use mydb;");
}
}

c# open cmd.exe process and Execute multiple commands

I would like to be able to open cmd and execute two commands from the window. First I would like to navigate to a particular directory where I can then run the second command from. Running a single command is pretty easy as this is all I have to do:
string path = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86) + #"\Cisco Systems\VPN Client\";
Process process = new Process();
ProcessStartInfo processInfo = new ProcessStartInfo("cmd.exe", #"/c cd " + path );
process.StartInfo = processInfo;
process.Start();
However am not sure of the way to add the second argument so it runs after cmd runs the first command. Some research led me to this code snippet. Am unsure if this works since my aim is to start cisco vpn client from cmd and this seems not to start it. Here is the code:
string path = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86) + #"\Cisco Systems\VPN Client\";
Process process = new Process();
ProcessStartInfo processInfo = new ProcessStartInfo("cmd.exe", #"/c cd " + path + "-t vpnclient connect user validuser pwd validpassword nocertpwd validconnectionentry ");
process.StartInfo = processInfo;
process.Start();
I once started the vpn client from cmd with the credentials just to make sure they were valid and it worked but I cant pull it off via C# programmatically.
Regards.

There three things you can do to achieve what you want. The easiest is to set the working directory of the process through ProcessStartInfo. This way you will only have to execute the command to start the VPN client.
The second option is redirecting the input and output of the process. (Also done through the ProcessStartInfo) This is something you want to do if you need to send more input to the process, or when you want to retrieve the output of the process you just started.
The third option is to combine the two commands with the & symbol. Using the & symbol makes cmd.exe execute the two commands sequentially (See here for an overview of the available symbols). Using this option will result in a command like this: /c cd path & vpnclient.
However because you just want to change the working directory of the process using the first option makes your code more readable. Because people reading your code do not need to know the & symbol in bash to understand what your code does. Changing the working directoy is done with the WorkingDirectory (MSDN) property of ProcessStartInfo (MSDN). See the following code:
var processInfo = new ProcessStartInfo("cmd.exe", #"/c vpnclient connect user validuser pwd validpassword nocertpwd validconnectionentry ");
processInfo.UseShellExecute = false;
processInfo.WorkingDirectory = path;

You can use & to execute next command or && to execute following command only if the previous one succeeded.
Examples:
dir /b & cls
and
taskkill /f /im explorer.exe && start explorer

Using cmd.exe from C#

I have been toying with the Process class in C#. I have some code below I'd like to use to open cmd.exe and run the DIR command. However, when I attempt to use the code, the cmd.exe opens, but no command is run. Why is this happening and how do I fix it?
Process cmd = new Process();
cmd.StartInfo.FileName = #"cmd.exe";
cmd.StartInfo.Arguments = #"DIR";
cmd.Start();
cmd.WaitForExit();

Try passing the /K option to let the command console stay at video and receive the subsequent DIR command (Without exit).
Process cmd = new Process();
cmd.StartInfo.FileName = #"cmd.exe";
cmd.StartInfo.Arguments = #"/K DIR"; // <-- This will execute the command and wait to close
cmd.Start();
cmd.WaitForExit();
The /K option will allow you to get a better understanding of what happens in the command window because the window will not close immediately and you need to click the close button or type the Exit command. If you want to exit after issuing your commands then use the /C option.

cmd.StartInfo.Arguments = #"/c DIR";

Running cmd with C# and parameter

I have to compile a game like this
love "C:\testgame"
in the cmd. So I use this code, but it seems like the parameter is missinterpreted. Also, the console closes after a sec. But if I use Messagebox.Show I can see the command in the cmd is the same I manually use (and this works)
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.RedirectStandardInput =
true;
cmd.StartInfo.RedirectStandardOutput =
true;
cmd.StartInfo.CreateNoWindow = false;
cmd.StartInfo.UseShellExecute = false;
cmd.Start();
cmd.StandardInput.Write(#"cd %ProgramFiles(x86)%\LOVE\");
MessageBox.Show("love \""+fldBrowDiag.SelectedPath.ToString()+#"\"+lsb_projects.SelectedItem.ToString()+"\"");
cmd.StandardInput.Close();
cmd.Close();

First, the "cd" command you issue will probably fail because you don't have quotes around the argument. (that program files env variable will have spaces in it.)
Second, instead of writing to stdin directly, maybe consider using the "/c" switch that will instruct cmd.exe to execute the specified commands directly. You can separate the commands with '&&'.

Try this to simplify things:
var process = Process.Start(
new ProcessStartInfo(#"C:\Program Files (x86)\LOVE\love.exe", #"C:\game") {
WorkingDirectory = #"C:\Program Files (x86)\LOVE" });

Why can't you just start cmd with the correct arguments to launch your process?
eg cmd /C love "c:\game" to close after finish or cmd /K love "c:\game to leave open after finish?

problems with stdout and psexec.exe from sysinternals

i have searched and read about issues with psexec.exe from sysinternals not working properly with c# and stdout. i am now trying to figure out how to just call a batch file that has the following instead of using System.Diagnostics.Process to call psexec:
test.bat contains the following line:
psexec.exe \\hostname -u user -p password ipconfig /all >c:\test.txt
test.txt will be saved on the host where i am running my c sharp app and executing psexec.
when i execute the following:
System.Diagnostics.Process psexec_run = new System.Diagnostics.Process();
psexec_run.StartInfo.FileName = "cmd.exe";
psexec_run.StartInfo.Arguments = #"/c """ + cur_dir + #"\test\test.bat""";
psexec_run.StartInfo.UseShellExecute = false;
psexec_run.Start();
psexec_run.WaitForExit();
i see the cmd window pop up and it runs something but not sure what and goes away.
if i execute the following:
System.Diagnostics.Process psexec_run = new System.Diagnostics.Process();
psexec_run.StartInfo.FileName = cur_dir + "\\test\\psexec.exe";
psexec_run.StartInfo.Arguments = #"\\hostname -u user -p password ipconfig /all";
psexec_run.StartInfo.UseShellExecute = false;
psexec_run.Start();
psexec_run.WaitForExit();
then i see the command window open and it runs psexec which takes quite a few secs and i quickly see my output i need, but i have no way of capturing the output or writing it to a file.
i guess my issue now is since psexec will not work with stdout how can i capture the output from the psexec command to write it to a file???
see the following link for the issues with psexec, the last reply on this url mentioned a way to write the process output to a file without using stdout, i'm newbie to c# i can't figure out how to write process output without use stdout :(
http://forum.sysinternals.com/psexec-fails-to-capture-stdout-when-launched-in-c_topic19333.html
based on response below i tried the following:
ProcessStartInfo psi = new ProcessStartInfo(cur_dir + "\\test\\psexec.exe", #"\\hostname -u user -p password ipconfig /all");
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
psi.UseShellExecute = false;
Process p = Process.Start(psi);
StreamReader myStreamReader = p.StandardOutput;
// Read the standard output of the spawned process.
string sOutput = myStreamReader.ReadToEnd();
i did ReadToEnd so i would make sure it got all the output, it DID NOT!! for some reason it only go the first line of ipconfig output that was it. Also the cmd window it opened up never closed for some reason. even with CreateNoWindow=true the code just hangs. so again something is wrong with psexec and stdout i think?? as i can run this code just fine using ipconfig /all command on the local host and not use psexec...
again i am looking to avoid stdout and somehow find a way to get the output from this command or unless there is something else i'm over looking? also, not to make more work for anyone, but if you d/l psexec.exe from sysinternals and test it with a command on a remote host you will see. i have spent 2 days on this one :( trying to figure out how to use psexec or find some other quick method to execute remote command on a host and get ouptput.
UPDATE:
i gave up on psexec in c# code, i saw many posts about psexec eating the output, having a child window process ,etcc
until my head hurt :) so i am trying to run a batch file and output to a file and it's not making sense...
i have a batch file test.bat with the following
psexec.exe \\\hostname -u name -p password ipconfig /all >c:\test.txt
when i run the following code:
ProcessStartInfo psi = new ProcessStartInfo(cur_dir + #"\test\test.bat");
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
psi.UseShellExecute = false;
Process p = Process.Start(psi);
p.WaitForExit();
the cmd windows comes and goes really quickly and the test.txt file is created but is 0 bytes no info in it.
so if i run the batch file in a windows cmd line with the psexec command it works perfectly fine!!???
so then to verify psexec was the issue i changed the batch file to:
ipconfig /all >c:\test.txt
i execute my code above and it works fine creates the output in the test.txt file..???!!!!
why is not working with psexec am i missing something? if it's psexec, does anyone have
any recommendations for how i can execute a command on a remote windows host and get me the
output???

I have an answer to this problem that has worked for me.
Hopefully someone else will find it useful.
I have literally just spent the last two hours tearing my hair out with this. The psexec tool runs completely fine using a normal command prompt but when attempting to redirect the streams it truncates the output and you only get half output back.
In the end how I fixed my issue was a little bit of a hack. I piped the output of the command to a text file and read it back in to return it from the function.
I also has to set UseShellExecute to true. Without this it still wouldn't work. This had the unfortunate side effect of showing the console window. To get around that I set the window style to be hidden and hey presto it works!!!
Heres my code:
string ExecutePSExec(string command)
{
string result = "";
try
{
string location = AppDomain.CurrentDomain.BaseDirectory;
// append output to file at the end of this string:
string cmdWithFileOutput = string.Format("{0} >{1}temp.log 2>&1", command,location );
// The flag /c tells "cmd" to execute what follows and exit
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "/c " + cmdWithFileOutput);
procStartInfo.UseShellExecute = true; // have to set shell execute to true to
procStartInfo.CreateNoWindow = true;
procStartInfo.WindowStyle = ProcessWindowStyle.Hidden; // as a window will be created set the window style to be hiddem
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
proc.WaitForExit();
// now read file back.
string filePath = string.Format("{0}temp.log", location);
result = System.IO.File.ReadAllText(filePath);
}
catch (Exception objException)
{
// Log the exception
}
return result;
}
and its usage:
string command = #"psexec.exe -l -u domain\username -p password /accepteula \\192.168.1.3 netstat -a -n";
ExecutePSExec(command);

I had exactly same problem. i was getting "Windows ip config. " as first line when i run with psexec. i tried with paexec it worked well. I used Marius's code.
Note: if you dont use first cmd / c in arguments command runs only on local computer even if you define target as \\remoteserver
ProcessStartInfo psi = new ProcessStartInfo("cmd.exe");
psi.Arguments = #"cmd/c C:\paexec.exe \\\192.168.2.5 -s -u test.local\administrator -p Password1 cmd /c ipconfig";
psi.CreateNoWindow = true;
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
psi.UseShellExecute = false;
Process p = Process.Start(psi);
System.IO.StreamReader myStreamReader1 = p.StandardOutput;
p.WaitForExit();
string sOutput = myStreamReader1.ReadToEnd();

Are you sure your sourcecode is correct? that link is quite a bit old.. maybe its fixed!
Heres an example how to redirect the standard-output and put whole output in a string via streamreader:
ProcessStartInfo psi = new ProcessStartInfo("tftp.exe");
// preferences for tftp process
psi.CreateNoWindow = true;
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
psi.UseShellExecute = false;
Process p = Process.Start(psi);
StreamReader myStreamReader = p.StandardOutput;
p.WaitForExit();
// Read the standard output of the spawned process.
string sOutput = myStreamReader.ReadToEnd();

i found a solution. apparently psexec is NOT going to work in c sharp. so i came up with some wmi code to connect to a remote host and it's working PERFECTLY!!! :)
i used microsoft's WMICodeCreator.exe to create wmi code for C# for the process method on a remote host, wow that tool is amazing because wmi code is little confusing to me.

psexec's output goes to StandardError and not StandardOutput. I don't know why it is that way. Following code snippet access it.
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.RedirectStandardError = true;
Process process = new Process();
process.StartInfo = startInfo;
process.Start();
process.WaitForExit();
errors = process.StandardError.ReadToEnd();
process.Close();