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How to run multiple cmd commands from c# console app

I'm looking to automate nupkg creation in a c# app. I'm aiming to include nuget.exe in my project and use System.Diagnostics to launch cmd.exe as a process and then pass the required commands, which would be 'cd project\path\here', 'nuget spec something.dll' and 'nuget pack something.nuspec'.
The code I have so far is:
Process p = new Process();
ProcessStartInfo info = new ProcessStartInfo(#"C:\Windows\System32\cmd.exe", #"mkdir testdir");
p.StartInfo = info;
p.Start();
Console.ReadLine();
However, it doesn't even create the testdir, and I've got no idea how to chain those commands. There is a method called WaitForInputIdle on my p Process, but it raises events and I've got no idea how to handle those to be honest.
A perfect solution would also let me read output and input. I've tried using StreamWriter p.StandardInput, but then there's the problem of checking whether a command is finnished and what was the result.
Any help would be much appreciated.
Edit: Success! I've managed to create a directory :)
Here's my code now:
Process p = new Process();
ProcessStartInfo info = new ProcessStartInfo(#"C:\Windows\System32\cmd.exe");
info.RedirectStandardInput = true;
info.UseShellExecute = false;
p.StartInfo = info;
p.Start();
using (StreamWriter sw = p.StandardInput)
{
sw.WriteLine("mkdir lulz");
}
Still no idea how to await for input and follow up with more commands, though.

You can do this by three ways
1- The easiest option is to combine the two commands with the '&' symbol.
var processInfo = new ProcessStartInfo("cmd.exe", #"command1 & command2");
2- Set the working directory of the process through ProcessStartInfo.
var processInfo = new ProcessStartInfo("cmd.exe", #"your commands here ");
processInfo.UseShellExecute = false;
processInfo.WorkingDirectory = path;
3- Redirecting the input and output of the process. (Also done through the ProcessStartInfo).This is required when you like to send more input to the process, or when you want to get the output of the process
Also see this answer

How to pass arguments to an already open terminal via System.Diagnostics.Process()

I have been messing around with triggering a bash script via C#. This all works fine when I first call the "open" command with arguments which in turn opens my .command script via Terminal.
Once the "open" command is used once Terminal or iTerm will remain open in the background, at which point calling the "open" command with arguments then has no further effect. I sadly have to manually quit the application to trigger my script again.
How can I pass arguments to an already open terminal application to restart my script without quitting?
I've searched online ad can't seem to work it out, it already took a good amount of time solve the opening code. Your help is much appreciated.
Here is the C# code I'm using to start the process:
var p = new System.Diagnostics.Process();
p.StartInfo.FileName = "open";
p.StartInfo.WorkingDirectory = installFolder;
p.StartInfo.Arguments = "/bin/bash --args \"open \"SomePath/Commands/myscript.command\"\"";
p.Start();
Thanks
EDIT:
Both answers were correct, this might help others:
ProcessStartInfo startInfo = new ProcessStartInfo("/bin/bash");
startInfo.WorkingDirectory = installFolder;
startInfo.UseShellExecute = false;
startInfo.RedirectStandardInput = true;
startInfo.RedirectStandardOutput = true;
Process process = new Process();
process.StartInfo = startInfo;
process.Start();
process.StandardInput.WriteLine("echo helloworld");
process.StandardInput.WriteLine("exit"); // if no exit then WaitForExit will lockup your program
process.StandardInput.Flush();
string line = process.StandardOutput.ReadLine();
while (line != null)
{
Debug.Log("line:" + line);
line = process.StandardOutput.ReadLine();
}
process.WaitForExit();
//process.Kill(); // already killed my console told me with an error

You can try:
before calling p.Start():
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
// for the process to take commands from you, not from the keyboard
and after:
if (p != null)
{
p.StandardInput.WriteLine("echo helloworld");
p.StandardInput.WriteLine("executable.exe arg1 arg2");
}
(taken from here)

This is what you may be looking for :
Gets a stream used to write the input of the application.
MSDN | Process.StandardInput Property
// This could do the trick
process.StandardInput.WriteLine("..");

How to catch %ERRORLEVEL% when running Psexec.exe in C#, save to log file

I am using psexec.exe to install some software on a large amount of computers. I would like to be able to catch the %ERRORLEVEL% (or its c# equivalent) and write them to a TXT file. ( cmd.exe exited on 6440-nbpb00f51w with error code 0.)
After extensive research, I am finding several possibilities. My end-goal will be to have a .CSV file. Each row would have the computer name and the output of the psexec command. Using this data I will be able to determine which computers the update was successful on.
string[] pcnamearray = new string[] {"COMPUTERNAME1", "COMPUTERNAME2"};
foreach (string i in pcnamearray)
{
Process p = new Process();
string psexeclaunch = "psexec.exe";
p.StartInfo.FileName = psexeclaunch;
p.StartInfo.RedirectStandardOutput = false;
p.StartInfo.UseShellExecute = true;
p.StartInfo.CreateNoWindow = false;
string arg = "/silent";
p.StartInfo.Arguments = #" -i \\" + i + #" -u mydomain\admin -p mypassword -h -e cmd.exe /c start \\networkserver\sw\myfile.exe" + arg;
p.Start();
}
I am not here looking for someone to write the code for me. I am here to ask people for their advice, or past experiences with this. I know there are several different methods available. Ideally, I would prefer to have a short sweet line for each result, but if i have to take the entire output and use macros to shave them down to a more readable form, that is fine too.
So far, I have tried:
Console.WriteLine(p.StandardOutput.ReadToEnd());
And...
System.IO.File.WriteAllLines(#"C:\Users\areu2447\Desktop\UpdateDAT\Final\out.txt", lines);
And...
FileStream filestream = new FileStream(#"C:\Users\areu2447\Desktop\UpdateDAT\Final\out.txt", FileMode.Append);
var streamwriter = new StreamWriter(filestream);
streamwriter.AutoFlush = true;
Console.SetOut(streamwriter);
Console.SetError(streamwriter);
The last one seems to me like the best one but cannot seem to get it to work. I have tried including it in my foreach loop, but file is in use by another process, so after looking into it i found that it needed to be on its own. Even with it alone, i still cannot get it to work.
Please help/advise!
I was able to get it to actaully modify my TXT file, even though there was nothing added to it, by using the following:
System.IO.StreamReader reader = p.StandardOutput;
String sRes = reader.ReadToEnd();
StreamWriter SW;
SW = File.CreateText(#"C:\Users\areu2447\Desktop\UpdateDAT\Final\out.txt");
SW.WriteLine(sRes);
SW.Close();
Console.WriteLine("File Created Successfully");
reader.Close();

I would recommend using System.Management.Automation to create a PowerShell pipeline and run the script in process.
Executing PowerShell scripts from C#

.NET console output and PSExec

I'm running PSExec Microsoft tool with Process class executing a remote command with its own output like this:
Process p = new Process();
string args = #"\\remotemachine -u someuser -p somepass wmic product get name";
ProcessStartInfo ps = new ProcessStartInfo();
ps.Arguments = args;
ps.FileName = psExecFileName;
ps.UseShellExecute = false;
ps.CreateNoWindow = true;
ps.RedirectStandardOutput = true;
ps.RedirectStandardError = true;
p.StartInfo = ps;
p.Start();
StreamReader output = p.StandardOutput;
string output = output.ReadToEnd();
where wmic product get name is WMI tool running remotely with its own output listing all installed applications on the remote machine.
So, in the output I don't see the output of wmic, at the same time when I'm running PSExec in the command line locally, I can fully see the output of both PSExec and started remotely WMIC.
The question is, how can I capture all the output on the local machine? Should I run it in a separate console and try to attach to the console to capture all the output?
More generally, if put plainly, why is the output in the process StandardOutput and in the console when running PSExec directly not the same?

ReadToEnd will wait till the process exit. e.g. a Console.ReadLine() in the psExecFile could block your reading. But you can get the already written stream,
StreamReader output = p.StandardOutput;
string line;
while ((line = output.ReadLine()) != null)
{
Console.WriteLine(line);
}

In the console, data written to both StandardOutput and StandardError is displayed in the console.
Within your program you need to look at each individually...try adding something like this at the end:
string error = p.StandardError.ReadToEnd();

Running Phantomjs using C# to grab snapshot of webpage

I'm trying to grab snapshots of my own website using phantomjs - basically, this is to create a "preview image" of user-submitted content.
I've installed phantomjs on the server and have confirmed that running it from the command line against the appropriate pages works fine. However, when I try running it from the website, it does not appear to do anything. I have confirmed that the code is being called, that phantom is actually running (I've monitored the processes, and can see it appear in the process list when I call it) - however, no image is being generated.
I'm not sure where I should be looking to figure out why it won't create the images - any suggestions? The relevant code block is below:
string arguments = "/c rasterize.js http://www.mysite.com/viewcontent.aspx?id=123";
string imagefilename = #"C:\inetpub\vhosts\mysite.com\httpdocs\Uploads\img123.png";
Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.CreateNoWindow = false;
p.StartInfo.FileName = #"C:\phantomjs.exe";
p.StartInfo.Arguments = arguments + " " + imagefilename;
p.Start();
string output = p.StandardOutput.ReadToEnd();
p.WaitForExit();

I check the errors that phantomjs throws during its process.
You can read them from Process.StandardError.
var startInfo = new ProcessStartInfo();
//some other parameters here
...
startInfo.RedirectStandardError = true;
var p = new Process();
p.StartInfo = startInfo;
p.Start();
p.WaitForExit(timeToExit);
//Read the Error:
string error = p.StandardError.ReadToEnd();
It will give you an idea of what happened

The easiest way for executing phantomjs from C# code is using wrapper like NReco.PhantomJS. The following example illustrates how to use it for rasterize.js:
var phantomJS = new PhantomJS();
phantomJS.Run( "rasterize.js", new[] { "https://www.google.com", outFile} );
Wrapper API has events for stdout and stderr; also it can provide input from C# Stream and read stdout result into C# stream.