Execute linux command on Centos using dotnet core

Question

I'm running a .NET Core Console Application on CentOS box. The below code is executing for normal command like uptime, but not executing for lz4 -dc --no-sparse vnp.tar.lz4 | tar xf - Logs.pdf:

try
{
    var connectionInfo = new ConnectionInfo("server", "username", new PasswordAuthenticationMethod("username", "pwd"));
    using (var client = new SshClient(connectionInfo))
    {
        client.Connect();

        Console.WriteLine("Hello World!");
        var command = client.CreateCommand("lz4 -dc --no-sparse vnp.tar | tar xf - Logs.pdf");
        var result = command.Execute();
        Console.WriteLine("yup ! UNIX Commands Executed from C#.net Application");
        Console.WriteLine("Response came form UNIX Shell" + result);

        client.Disconnect();
    }
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

Expected output is Logs.pdf file needs to be extracted and saved in the current location. Can someone correct me where im

Harit Kumar · Accepted Answer · 2017-09-29 12:13:06Z

15

If application is running on Linux machine then you can try this also:

string command = "write your command here";
string result = "";
using (System.Diagnostics.Process proc = new System.Diagnostics.Process())
{
    proc.StartInfo.FileName = "/bin/bash";
    proc.StartInfo.Arguments = "-c \" " + command + " \"";
    proc.StartInfo.UseShellExecute = false;
    proc.StartInfo.RedirectStandardOutput = true;
    proc.StartInfo.RedirectStandardError = true;
    proc.Start();

    result += proc.StandardOutput.ReadToEnd();
    result += proc.StandardError.ReadToEnd();

    proc.WaitForExit();
}
return result;

answered Sep 29, 2017 at 12:13

Harit Kumar

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2 Comments

tom.maruska Over a year ago

If command contains quotes, you should escape it like command = command.Replace("\"", "\\\"");

Michel El Hajj Over a year ago

If i need the output of the command ls in folder /opt/myFile what should be the values of FileName and Arguments?

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