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I'm starting learning C#, but I have no idea how I can compile my code using terminal. I searched the internet, but nothing helped me. I'm tryed to use gmcs and csc and nothing helped. So, how can I compile C# file using linux terminal?

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To compile a C# file, you need to have dotnet installed, here is a link with the info on how to install it. Dotnet Then you go to where the file is and put:

dotnet run <file.cs>

(without <> obviously).

Although it is highly recommended that you create a project first and paste your code into the Program.cs file. This way you will avoid unnecessary headaches.

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I did as you said and I get an error at startup dotnet: "Failed to complete because the specified command or the specified file was not found." I used: "dotnet file.cs"
is dotnet run file.cs
I don't know if this worked before, but when I run it it's failing becaus it's looking for a project. It don't want to run single .cs files. "Couldn't find a project to run. Ensure a project exists in /home, or pass the path to the project using --project." Although, you can setup a new project easily. For a console project type in "dotnet new console". For a list of possible projects type in "dotnet new list".
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https://www.mono-project.com/download/stable/#download-lin

Install mono.

And then in the console: csc 'location of a .cs file'

To run it: mono 'location of the compiled exe'

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When i using csc I get an error: Syntax error: illegal atomic form: () inside expression `(string ...)'. I'm used "csc hello.cs" and get it
mono-project.com/docs/getting-started/mono-basics You mean this?
Yes, I mean this
WinForms Hello World or Console Hello World? Which one you tried to compile?
Console Hello World
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Consider trying an Ubuntu solution which is Mono C# Compiler

First, install the mono-mcs package:

sudo apt-get update -y
sudo apt-get install -y mono-mcs

Next, compile your C# file:

mcs yourfilename.cs

Finally, execute the compiled program:

mono yourfilename.exe
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