Summary
    Gets the name of the directory.
    
		- Namespace
- Cake.Core .IO 
- Containing Type
- DirectoryPath
Syntax
public string GetDirectoryName()Remarks
       If this is passed a file path, it will return the file name.
       This is by-and-large equivalent to how DirectoryInfo handles this scenario.
       If we wanted to return the *actual* directory name, we'd need to pull in IFileSystem,
       and do various checks to make sure things exists.
    
	Return Value
| Type | Description | 
|---|---|
| string | The directory name. | 
