Most internal commands (like COPY, DIR, etc.) work on a file or a group of files. You can use several shorthand forms for naming or selecting files and the applications associated with them, or for accessing files on remote systems.
Most of the features explained in this section apply to TCC commands only, and generally cannot be used to pass file names to external programs (unless those programs were specifically written to support these features).
The features discussed in this section are:
Extended Parent Directory Names