
Q&D Push Directory v1.0c by PhG

Syntax : PUSHDIR [path] [-list|-zero]

This program saves current drive and directory,
then it tries and changes to optional path (if specified),
returning 255 error code if operation was not possible for any reason.

~POPDIR.TMP companion data file will be located in directory
specified by any of the following environment variables :
PUSHPOP, TMP, TEMP, TMPDIR or TEMPDIR (in that order).
