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Frostbyte's 1980s DOS Shareware Collection
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floppyshareware.zip
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floppyshareware
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USCX
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SETPGMS.ZIP
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SETDIR.DOC
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1986-11-23
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1KB
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SETDIR Use to restore the current directory
SETDIR sets the environment string 'CURDIR' with the current directory. Once
this has been done it is very simple to restore the current directory after it
has been changed. To restore the current directory, simply issue the following
command:
CD %CURDIR%
This technique has distinct advantages over other techniques that create files
(i.e. CD >CURDIR.FIL) or modify the interupt vector (PUSHDIR/POPDIR from PC
magazine and PC OUTLINE). It is much faster, creates no files, cannot be
impacted by programs that modify the interrupt vector, and requires only
one very small program.
If you desire setting another environment variable, use the following:
SETDIR
SET name=%CURDIR%
Note that due to limitations in DOS, the errorlevel can be 0 even if
SETDIR fails due to lack of environment space. Errorlevels 1 and 2
are for SETDIR errors. Errorlevel=1 means the DOS release is not at least 2.
Errorlevel=2 means that the directory string was too long to return.