Combines this path with the given relative path, returning a path of the same type as this one (e.
Gives you the file extension of this path, or the empty string if there is no extension
The last segment in this path.
Relativizes this path with the given
base path, finding a
p such that base/p == this.
The individual path segments of this path.
This path starts with the target path, including if it's identical
Obtain the final path to a file by resolving symlinks if any.
Some(path) or else None if the symlink is invalid or other error.