FS

PM> Install-Package FS

Then

var fs = new FileSystem();

Copy

fs.Copy("fromDirectory", "toDirectory");
fs.Copy("fromFile.txt", "toFile.txt");

It will even create the missing directories:

fs.Copy("fromFile.txt", @"path\to\toFile.txt");

Or to copy into a directory:

fs.CopyToDirectory("fromFile.txt", @"aDirectory");

Don't copy some files:

fs.Copy("source", "dest", fn => fn != ".git");

Move

fs.Move("fromDirectory", "toDirectory");
fs.Move("fromFile.txt", "toFile.txt");

It will even create the missing directories:

fs.Move("fromFile.txt", @"path\to\toFile.txt");

Or to move into a directory:

fs.MoveToDirectory("fromFile.txt", @"aDirectory");

Find

var paths = fs.Find("directory");

Will return the relative paths of all files and directories inside directory, including directory. E.g.

directory
directory\somefile.txt
direcotry\subdir
direcotry\subdir\anotherfile.txt

Find returns a lazy enumeration, so it only finds stuff as you consume the enumeration. For example, if you were just looking for the first text file on your C:\ drive:

var textFile = fs.Find(@"C:\").FirstOrDefault(path => path.EndsWith(".txt"));

It won't go searching the rest of your C:\ drive.

Find also takes a predicate argument so you can tell it not to recurse into directories that you aren't interested in:

var paths = fs.Find("directory", dir => dir != ".git");

Delete

fs.Delete("file.txt");
fs.Delete("directory");

Create

Creates the full path:

fs.CreateDirectory(@"a\long\path\to\a\directory");

Why?

Because this is the last time I'll write code to recursively copy a directory in C#.