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% short description of MD++ variable
%  dirname

Type: string.
%
Default: none.
%
MD++ immediately opens a directory specified by this variable and
enters (i.e. {\tt cd} into) this directory.  This becomes the working
directory for all future operations and the place for all output
files.
%
Output to screen is redirected to the A.log file in this directory
if {\tt setnolog} is not set beforehand.
