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@setlocal
@set thisdir=%~dp0
@set thisfile=%~f0
...
@echo;
@endlocal

         thisdir=D:\
        thisfile=D:\this2.bat
thisfilebasename=this2
    thisfilename=this2.bat
  thisfilecorion=D:\this2.pl
      thisfilepl=D:\this2.pl

@setlocal
@set "thisdir=%~dp0"
@set "thisfile=%~f0"
...
@echo;
@endlocal

$  "D:\pa^th\this2.bat"
         thisdir=D:\path\
        thisfile=D:\path\this2.bat
...
  thisfilecorion=D:\path\this2.pl
      thisfilepl=D:\path\this2.pl