To Run :

• Install mono-complete in your Linux.
• Hit the command "chmod +x first.cs" to give file perms to make it executable.
• Do "ls -lh" to confirm it has the perms.
• "mcs -o:Hello.exe first.cs" to compile.(Example) For multiple files : cms -o:Compiled.exe first.cs second.cs third.cs
• "mono hello.exe" to show output.