Retrieve the Value of an Environment Variable - CSharp Operating System

CSharp examples for Operating System:Environment

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Description

Retrieve the Value of an Environment Variable

Demo Code


using System;/*ww  w. j a  v a  2  s  . c o  m*/
using System.Collections;

class MainClass
    {
        public static void Main()
        {
            Console.WriteLine("Path = " + Environment.GetEnvironmentVariable("Path"));
            Console.WriteLine(Environment.NewLine);

            Console.WriteLine(Environment.ExpandEnvironmentVariables("The Path on %computername% is %Path%"));
            Console.WriteLine(Environment.NewLine);

            IDictionary vars = Environment.GetEnvironmentVariables( EnvironmentVariableTarget.Process);

            foreach (string s in vars.Keys)
            {
                if (s.ToUpper().StartsWith("U"))
                {
                    Console.WriteLine(s + " = " + vars[s]);
                }
            }
        }
    }

Result


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