:: FILENAME.BAT - A procedure to manipulate an existing file name. 
::
::  Tom Lavedas <lavedas@pressroom.com>
::              http://www.pressroom.com/~tglbatch/
 @echo %dbgf% off
%4 if [%1]==[] for %%v in (echo goto:End) do %%v Required filename missing.
%4 if [%2]==[] %0 %1 Result *.
%4 if [%3]==[] %0 %1     %2 *.
%4 > %ram%.\comparing.bat echo %%5 %0 %1 %2 %%4 ::
%4 >>%ram%.\comparing.bat fc %1 %3 /lb0
%4 comparing 1 2 3 4 ::
  del %ram%.\comparing.bat
  set %2=%3
 :End