Command: swsubst
SWSUBST combines subst with join with enhanced options.
SWSUBST replaces a path by a drive letter so that you have access to
a path via a drive letter.
Syntax:
swsubst [option] [command]
If swsubst is used without specifying a command, the CDS table is
displayed.
Options:
/# View the statistic of JOIN'ed drives in the CDS table.
/! Like /#; initialize the JOIN-flag, if it differs.
/f View non-printable characters hexadecimal.
/a View the CDS table after the command.
/k Create the pathes mentioned within the command.
/t Like /k, in SUBST check only, if path exist.
/_ Dump all attributes within the CDS table.
/o=# Use this backslash offset, do not calculate itself.
/x=?? List of drive letters to be ignored while a ::label: search
Commands:
- Initialize all SUBST'ed and JOIND'ed drives.
-- Initialize all non-networked drives.
dr [-]path Like %s dr [-]path.
/u dr [-]path Substitute dr to point to path.
/j dr [-]path Join dr into path.
/d dr | dr /d | dr - Initialize drive dr (and break SUBST/JOIN).
/s dr1 dr2 Swap dr1 and dr2.
/n [dr1 dr2] Swap unit numbers of the same device driver
(Std.: floppies).
/w dr Set ERRORLEVEL to the drive letter of drive.
/m [-]path Create path including all leading up-directories.
/c [-]path Like /m, then chdir into it.
dr:[+-=]{off,on,phys,net,join,subst,hidden} Set drive flags directly.
/q dr:[+-]{phys,net,join,subst,hidden} Query the drive flags.
Comments:
The DOS-standard emulating entities of SWSUBST, SUBST and JOIN, have
the same command line as DOS's have. But they differ in the following
points:
- The specified path will be make'ed, including the full path to it,
e.g. "SUBST c: d:/blah/humpf" creates the path "d:\blah\humpf",
regardless if d:\blah exists.
- You are allowed to break off relations on the fly, that means:
an already SUBST'ed can be re-SUBST'ed or re-JOIN'ed without
further note/warning.
- You are allowed to process a drive with itself, e.g.: "JOIN a:
a:\blah"
- The table dump is different, swsubst prints "X: => Y:\PATH" instead
of "X: is joined to Y:\PATH".
- You cannot rename the executables SUBST and JOIN.
- It won't test the DOS version, unless it's necessary for adjusting
different data structure sizes.
If you need SUBST or JOIN simply execute: "copy SWSUBST.EXE JOIN.EXE
or SUBST.EXE".
An ERRORLEVEL between 65 (ASCII 'A') and 90 (ASCII 'Z') indicates OK
and the drive letter itself; whereas an ERRORLEVEL of zero indicates,
that there is no such drive; and other ERRORLEVELS indicate an error.
Examples:
swsubst b: c:\blah\humpf
See also:
assign
join
subst
truename
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Copyright (C) 1995 Steffen Kaiser, updated 2008 by W. Spiegl.
This file is derived from the FreeDOS Spec Command HOWTO.
See the file H2Cpying for copying conditions.