Develop Reference

c# possible to copy a file from one directory to another using cmd [duplicate]

I need to copy a file from one directory to another and do something with that file. I need to copy it with cmd, rather than File.Copy(), because I need the copy to be done as a part of ProcessStartInfo.

You can use this code and change startInfo.Arguments, but /C should be!
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new
System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C copy example.txt backup.txt";
process.StartInfo = startInfo;
process.Start();

You can create a bat-file to copy one or multiple files (using *). Then execute the batch file.
string batFileName = #"C:\{filePath}\copy.bat";
System.IO.File.WriteAllText(batFileName, #"copy {fileName}.{extension} {destination-filePath}");
System.Diagnostics.Process.Start(batFileName);

I was able to formulate this answer using the DOS Copy syntax along with this Stack Overflow QA
Start cmd window and run commands inside
var startInfo = new ProcessStartInfo {
FileName = "cmd.exe",
RedirectStandardInput = true,
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true
};
var process = new Process {StartInfo = startInfo};
process.Start();
process.StandardInput.WriteLine(#"copy c:\Source\Original.ext D:\Dest\Copy.ext");
process.StandardInput.WriteLine("exit");
process.WaitForExit();

How can we use a command with pipe in C#

I'm trying to run a command with a pipe that uses findstr.
Following is a simple example of the command. (In actual case my command is more complicated than this, using this command for explanation)
dir | findstr /i /c:"web"
following is the function I use to run the process in C#.
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo = new System.Diagnostics.ProcessStartInfo()
{
UseShellExecute = false,
CreateNoWindow = true,
WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden,
FileName = "cmd.exe",
Arguments = "/C dir | findstr /i /c:\"web\"",
RedirectStandardError = true,
RedirectStandardOutput = true
};
process.Start();
string sResponse = process.StandardOutput.ReadToEnd();
process.WaitForExit();
I haven't figured out how to run this command using this process.
Above will work for commands without | (Pipe)
Please let me know if there are any workarounds.

How to open and use Git Bash through c# code

I'm trying to include opening Git Bash, pushing and pulling in my c# code. Whilst opening Git Bash with Process.Start() is not the problem, I cannot manage to write commands into Git Bash.
I've tried including commands in ProcessStartInfo.Arguments, as well as redirecting the standard Output. Both has not worked at all. Down below you can see the different code snippets I tried.
private void Output()
{
//Try 1
processStartInfo psi = new ProcessStartInfo();
psi.FileName = "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Git\Git Bash.lnk";
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.Argument = "git add *";
Process p = Process.Start(psi);
string strOutput = p.StandardOutput.ReadToEnd();
Console.WriteLine(strOutput);
//Try 2
ProcessStartInfo psi = new ProcessStartInfo(#"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Git\Git Bash.lnk");
Process.Start(psi);
psi.Arguments = "git add *";
Process.Start(psi);
//Try 3
var escapedArgs = cmd.Replace("\"", "\\\"");
var process = new Process()
{
StartInfo = new ProcessStartInfo
{
FileName = #"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Git\Git Bash.lnk",
Arguments = "cd C:\\Users\\strit\\autocommittest2\\autocommittest2\n",
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true,
}
};
process.Start();
string result = process.StandardOutput.ReadToEnd();
process.WaitForExit();
}
Git Bash opens but nothing is written in the command line.

I know it is old question, still adding answer as few days ago I was also facing same issue.
I think what you are missing is -c parameter. I used below code and it solved this issue. -c tells git-bash to execute whatever follows, it is similar to -cmd parameter in command line.
In below mentioned function -
fileName = path of git-bash.exe.
command = git command which you want to execute.
workingDir = Local path of git repository.
public static void ExecuteGitBashCommand(string fileName, string command, string workingDir)
{
ProcessStartInfo processStartInfo = new ProcessStartInfo(fileName, "-c \" " + command + " \"")
{
WorkingDirectory = workingDir,
RedirectStandardOutput = true,
RedirectStandardError = true,
RedirectStandardInput = true,
UseShellExecute = false,
CreateNoWindow = true
};
var process = Process.Start(processStartInfo);
process.WaitForExit();
string output = process.StandardOutput.ReadToEnd();
string error = process.StandardError.ReadToEnd();
var exitCode = process.ExitCode;
process.Close();
}
I hope it solves the issue.

I think you are on the right way. I would try to use the git in the path, but it should be possible to also use the git-bash.exe directly, at my machine it is located here: C:\Program Files\Git\git-bash.exe.
Process gitProcess = new Process();
gitInfo.Arguments = YOUR_GIT_COMMAND; // such as "fetch origin"
gitInfo.WorkingDirectory = YOUR_GIT_REPOSITORY_PATH;
gitInfo.UseShellExecute = false;
gitProcess.StartInfo = gitInfo;
gitProcess.Start();
string stderr_str = gitProcess.StandardError.ReadToEnd(); // pick up STDERR
string stdout_str = gitProcess.StandardOutput.ReadToEnd(); // pick up STDOUT
gitProcess.WaitForExit();
gitProcess.Close();

Like #S.Spieker already told you in it's good answer, no need to use git bash (it makes it harder to achieve and less performant), just call directly the git executable.
You could have a look to the GitExtensions code that is doing that: https://github.com/gitextensions/gitextensions/blob/027eabec3be497f8d780cc68ece268c64a43a7d5/GitExtensionsVSIX/Git/GitCommands.cs#L112
You could also achieve what you want using libgit2sharp (https://github.com/libgit2/libgit2sharp). That could be easier if you want to interpret the results of the command run.

Start command windows and run commands inside

I need to start the command window with some arguments and run more commands inside.
For example, launch a test.cmd and run mkdir.
I can launch the test.cmd with processstartinfo , but i am not sure how to run further commands. Can I pass further arguments to the test.cmd process?
How do I go about this?
Unable to add comments to answer... SO writing here.
Andrea, This is what I was looking for. However the above code doesnt work for me.
I am launching a test.cmd which is new command environment (like razzle build environment) and I need to run further commands.
psi.FileName = #"c:\test.cmd";
psi.Arguments = #"arg0 arg1 arg2";
psi.RedirectStandardInput = true;
psi.RedirectStandardOutput = true;
psi.CreateNoWindow = true;
psi.UseShellExecute = false;
Process p = new Process();
p.StartInfo = psi;
p.Start();
p.StandardInput.WriteLine(#"dir>c:\results.txt");
p.StandardInput.WriteLine(#"dir>c:\results2.txt");

You can send further commands to cmd.exe using the process
standard input. You have to redirect it, in this way:
var startInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
RedirectStandardInput = true,
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true
};
var process = new Process {StartInfo = startInfo};
process.Start();
process.StandardInput.WriteLine(#"dir>c:\results.txt");
process.StandardInput.WriteLine(#"dir>c:\results2.txt");
process.StandardInput.WriteLine("exit");
process.WaitForExit();
Remember to write "exit" as your last command, otherwise the cmd process doesn't terminate correctly...

The /c parameter to cmd.
ProcessStartInfo start = new ProcessStartInfo("cmd.exe", "/c pause");
Process.Start(start);
(pause is just an example of what you can run)
But for creating a directory you can do that and most other file operations from c# directly
System.IO.Directory.CreateDirectory(#"c:\foo\bar");
Start a cmd from c# is useful only if you have some big bat-file that you don't want to replicate in c#.

What are you trying to achieve? Do you actually need to open a command window, or do you need to simply make a directory, for example?
mkdir is a windows executable - you can start this program in the same way you start cmd - there's no need to start a command window process first.
You could also create a batch file containing all the commands you want to run, then simply start it using the Process and ProcessStartInfo classes you're already using.

How come this doesn't work?
var startInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
RedirectStandardInput = true,
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = false
};
var process = new Process { StartInfo = startInfo };
process.Start();
process.StandardInput.WriteLine(#" dir");
process.WaitForExit();

How do I use ProcessStartInfo to run a batch file?

But it doesn't work -meaning the java code is not executed.
Although the batch file runs fine when clicked in Windows explorer or when run in command line ..
Since this works fine when the batch file is a single DOS command, I think this is somehow related to the fact that the Java code needs ~20 minutes to run.
I'm using the following code
var si = new ProcessStartInfo();
si.CreateNoWindow = true;
si.FileName = batchFileName;
si.UseShellExecute = false;
Process.Start(si);
What am I doing wrong?

Set UseShellExecute to true, so it loads cmd.exe to run the batch file.

Check this - a batch file wrapper of ProcessStartInfo:
C:\>ProcessStartJS.bat "cmd.exe" -arguments "/c pause" -style Minimized -priority High -newWindow yes -useshellexecute yes
Started: cmd.exe /c pause
PID:6540

As Lucas Jones mentioned in the comments, if you don't want to use ShellExecute, do it like this:
string fullBatPath = #"C:\path with space\file.bat";
var process = new Process()
{
StartInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
Arguments = $"cmd /C \"{fullBatPath}\"",
UseShellExecute = false,
CreateNoWindow = true,
}
};
process.Start();