@echo offfor /f "delims=" %%a in (a.txt) do ( set "str=%%a" setlocal enabledelayedexpansion md !str:~,6! 2>nul endlocal)
setlocal enabledelayedexpansionfor /f "delims=" %%a in (a.txt) do (set f=%%~amd "!f:~,6!")Pause