How do you copy all files from one directory to another, preserving the structure?

Question

Utpal Vishwas · Answer

To copy all files from one directory to another while preserving the directory structure, you can use a recursive approach that walks through each subdirectory and recreates the same structure in the destination.
Here’s a complete example in C#:
Recursive Directory Copy (Preserving Structure)
using System;
using System.IO;
public class DirectoryCopier
{
    public static void CopyDirectory(string sourceDir, string destDir)
    {
        // Create the destination directory if it doesn't exist
        Directory.CreateDirectory(destDir);
        // Copy all files in the current directory
        foreach (var filePath in Directory.GetFiles(sourceDir))
        {
            string fileName = Path.GetFileName(filePath);
            string destFilePath = Path.Combine(destDir, fileName);
            File.Copy(filePath, destFilePath, overwrite: true);
        }
        // Recurse into subdirectories
        foreach (var subDir in Directory.GetDirectories(sourceDir))
        {
            string subDirName = Path.GetFileName(subDir);
            string newDestSubDir = Path.Combine(destDir, subDirName);
            CopyDirectory(subDir, newDestSubDir);
        }
    }
}
Example Usage
string source = @"C:\SourceFolder";
string destination = @"D:\BackupFolder";
DirectoryCopier.CopyDirectory(source, destination);
Notes
This method recreates the exact folder and file hierarchy from the source in the destination.Files are overwritten if they already exist in the destination (overwrite: true).It works for both small and large directory trees.

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How do you copy all files from one directory to another, preserving the structure?

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Recursive Directory Copy (Preserving Structure)

Example Usage

Notes

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