Use of System.Environment Class
The System.Environment Class provides information about the current environment and platform. The System.Environment Class uses to retrieve Environment variable settings, Version of the common language runtime, contents of the call stack etc. This class cannot be inherited.
How to get Current working directory ?
System.Environment.CurrentDirectory - will return your current working directory
How to get Machine Name ?
System.Environment.MachineName - will return your current machine name.
How to get current Operating System Version ?
System.Environment.OSVersion.ToString () - will return your current operating system version
How to get the current user name of the system ?
System.Environment.UserName - will return your current user name
How to add a New line in a text file ?
C# Source Code
How to add a blank line in a text file ?
VB.Net Source Code