PuTTY in C# for file transfer - putty

Question

Can any one help me with a code snippet in C# for transferring a file on my local machine to a remote server using PSCP (PuTTY) transfer methodology? I would really appreciate the help.
Thanks

Answer 1

You can use a library that support SCP like SSHNet or WinSCP. Both provide samples and tests that demonstrate how they work.
With SSH.Net you can upload a file using this code (from the test files):
using (var scp = new ScpClient(host, username, password))
{
scp.Connect();
scp.Upload(new FileInfo(filename), Path.GetFileName(filename));
scp.Disconnect();
}
With the WinSCP library the code looks like this (from the samples):
SessionOptions sessionOptions = new SessionOptions {
Protocol = Protocol.Sftp,
HostName = "example.com",
UserName = "user",
Password = "mypassword",
SshHostKey = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
};
using (Session session = new Session())
{
// Connect
session.Open(sessionOptions);
// Upload files
TransferOptions transferOptions = new TransferOptions();
transferOptions.TransferMode = TransferMode.Binary;
TransferOperationResult transferResult;
transferResult = session.PutFiles(#"d:\toupload\*", "/home/user/", false, transferOptions);
// Throw on any error
transferResult.Check();
}

Answer 2

Using SFTP and SCP supported clients with .NET Libraries might be the best option. But here is a simple way to use PSCP:
Process cmd = new Process();
cmd.StartInfo.FileName = #"C:\PuTTY\pscp.exe";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardInput = true;
cmd.StartInfo.RedirectStandardOutput = true;
string argument = #"-pw pass C:\testfile.txt user#10.10.10.10:/home/usr";
cmd.StartInfo.Arguments = argument;
cmd.Start();
cmd.StandardInput.WriteLine("exit");
string output = cmd.StandardOutput.ReadToEnd();