*BYE	Ensure that all currently open files are closed at the
	end of a session (similar in effect to *CLOSE).
*CAT (*.)	Display the filenames in the current or a specified
	directory. For example:
	*CAT displays the catalogue for the current
	directory;
	*CAT $. DAVE displays the catalogue for directory
	DAVE (which is subordinate to the
	root directory.
*CDIR (*CD.)	Create a subordinate directory with the specified
	name in the current diectory. For example:
	*CDIR MARY creates a directory called MARY in the
	current directory.
*CLOSE (*CL.)	Close all currently-open disc files.
*COMPACT (*COM.)	Reorganise the files in the directory heirarchy so
	that spaces created by file deletions are
	amalgamated into larger blocks.
*COPY	Copy a file from one directory to another. For
	example:
	*COPY $.TEXT $.BACKUP.VIEW
	copies the file TEXT (in the root directory) into
	directory $.BACKUP. VIEW i.e. it creates a file
	whose full pathname is $.BACKUP-VIEW .TEXT.
*CREATE ||	Reserve space for a file.
*DELETE (*DE.)	Delete the name of the specified file. For example:
	*DELETE IDEA deletes file IDEA from the
	current directory;
	*DELETE $.DAVE.B1 deletes file B1 from directory
	DAVE (itself in the root
	directory).
	A directory may be deleted only if it is empty.
*DESTROY (*DES.)	Delete a group of files(using the wildcard facility).
*DIR	Set the current directory.
*DISMOUNT	Ensure that all currently-open files are closed prior
(*DISM.)	to changing a disc.
App 5.3