Epson Apex 20020 - Manual (Page 92)

Thus, if the default directory were WORDPROC (in the above
example), the pathname . . \DOS would tell MS-DOS to
move up one level from WORDPROC (in this case to the root
directory) and then find a subdirectory called DOS.
You can use either relative or absolute pathnames at any time,
as long as you give MS-DOS enough information to find the
directory or file at the end of the pathname.
Including Filenames With Pathnames
You usually use a pathname when you want to access a file that
is not stored in the current default directory. The name of the
file you want to access is specified at the end of the pathname,
like this:
TYPE \WORDPROC\PERSONAL\JEANl204.DOC
This command tells MS-DOS to list on screen (TYPE) the
contents of the file JEAN1204.DOC, which is stored in the
directory \ WORDPROC \ PERSONAL. Note that the
filename is connected to the pathname by a backslash
character-the same character used to separate the various
directories in the pathname itself.
Including Drive Letters With Pathnames and Filenames
As explained earlier, if you want to access a file stored on a
drive other than the default drive, you have to include a drive
designator (A:, for example) along with the filename. Likewise,
if the file you want is not stored in the default directory of that
drive, you need to include a pathname as well as the drive
designator.
For example, suppose you are logged onto the root directory of
drive A, and you want to delete the file JEAN1204.DOC,
which is stored in the directory \WORDPROC\PERSONAL
of drive C. Enter the command as follows
DEL C:\WORDPROC\PERSONAL\JEANl204.DOC