Tandy 1000 MS-DOS Reference Manual page 191

Chapter 6 / Command Reference
Parameters
drive: is the virtual drive name.
pathname is the pathname you want to refer to as drive:.
/D deletes the association between drive: and pathname.
MS-DOS displays the names of the current virtual drives if you
omit all parameters.
!
,
r
I '
SUBST
I
~
1
SUBST
[drive:] [pathname] [lD]
Substitutes a virtual drive name for pathname.
External
r -
I '
I
G
~-
\
r
t '
r
I
r
1
i
Notes and Suggestions:
• The virtual drive: must be in the range A: to LASTDRIVE:.
If
the LASTDRIVE command is not in your CONFIG.SYS file,
SUBST defaults to E: as the virtual drive: name. (Refer to
Appendix B for more information on LASTDRIVE.)
• The virtual drive: cannot be the same as the current drive.
• The virtual drive: cannot be the same as a drive reference
included in pathname.
• SUBST creates or deletes a virtual drive by associating a
pathname with a drive letter.
• When MS-DOS sees a drive that was created with SUBST, it
replaces the reference with the new pathname.
Examples:
subst d: b:\usr\fred\forms
r -
!
creates virtual drive D for the pathname B:\USER\FRED\
forms. Now, instead of typing the full pathname, type D: to go to
I '
this directory.
I :
,
I"'
I .
I •
177