C# execute a terminal command in linux

Question

I want my c# application (which I execute on a raspberry pi) to run a bash script whenever it starts..
basically : the script is located in /etc/init.d and is named mnw. I want whenever my c# application starts, it should execute a part of the mnw script.
If it was written it in the terminal would look like :

cd /etc/init.d
./mnw stop

I want this to happen right at the start of public static void Main(), I've been trying

ProcessStartInfo startInfo = new ProcessStartInfo() { FileName = "/dev/init.d/./mnw", Arguments = "stop", }; 
Process proc = new Process() { StartInfo = startInfo, };
proc.Start();

but it says that stop is a unexpected argument, any ideas?

Answer 1

I have never used ProcessStartInfo on Mono / Linux, but have you tried calling via bash?

ProcessStartInfo startInfo = new ProcessStartInfo() { FileName = "/bin/bash", Arguments = "/dev/init.d/mnw stop", }; 
Process proc = new Process() { StartInfo = startInfo, };
proc.Start();

Also, there is no issues with the executable bit on mnw?

Answer 2

While using the Process class like in the accepted answer works, I' d like to add that there is a library called CliWrap that makes CLI calls like this much easier:

• fluent API to build the calls
• async support
• call with custom environment variables
• set working directory
• ability to pipe stdout/stderr into a string
• retrieve exit code
• etc.

using OPs question as example:

var result = await Cli
                  .Wrap("/dev/init.d/mnw")
                  .WithArguments("stop")
                  .ExecuteBufferedAsync();

// result contains:
// -- result.StandardOutput  (string)
// -- result.StandardError   (string)
// -- result.ExitCode        (int)
// -- result.StartTime       (DateTimeOffset)
// -- result.ExitTime        (DateTimeOffset)
// -- result.RunTime         (TimeSpan)

if (result.ExitCode != 0)
    Console.WriteLine("Command failed")

Thank you @Tyrrrz for this library!