メモ

ls|grep "\.jpg\|\.JPG\|\.jpeg\|\.jpg"|wc -l|sed -e "s/ //g"|sed -e "s/^/SET MM=/">a.bat
call a.bat
rm a.bat

SET AA=1

:ST
SET AB=00%AA%
SET AC=%AB:~-3%
echo %AC%>>OUT.TXT
SET /A AA=AA+1

IF %AA% LEQ %MM% GOTO :ST