AT&T 6300 Programmer's Manual page 262

FILES
Command
Syntax
filename
Remarks
7-106
Displays the names of files in the specified
directory.
FILES [filename]
is a string expression including either a filename or a
pathname and optional device designation.
If "filename" is omitted, all the files on the
currently selected drive will be listed.
"filename" is a string formula which may
contain question marks
(?)
or asterisks
(*)
used as wild cards. A question mark will
match any single character in the filename or
extension. An asterisk will match one or more
characters starting at the position. The
asterisk is a shorthand notation for a series of
question marks. The asterisk need not be used
when all the files on a drive are requested, e.g.,
FILES "B:".
If a filename is used and no explicit path is
given, the current directory is the default.