Batch script for creating dummy files using fsutil

DummyFileGen.bat

REM Batch script for generating a dummy file using fsutil
REM Dummy files have no functionality or purpose alone
REM They're however very useful for testing, debugging or benchmarking
REM You could for example benchmark and compare 7-Zip vs WinRAR performance

@echo OFF
chcp 65001
setlocal EnableDelayedExpansion
SET size2=a
SET "size2=!size2:a=>!"

:top
CLS
MODE 60,14
TITLE Dummy File Generator
COLOR 0A
SET newf=ERR#000#
SET /p newf=Enter output filename:
IF !newf! == ERR#000# GOTO top
SET newf=!newf!.txt
SET size=#ERR000#

ECHO       (SIZE) = (BYTES) / (BITS)
ECHO ╔════════════════════════════════════╗
ECHO ║1 KB = 1024 / 8192                  ║
ECHO ║1 MB = 1048576 / 8388608            ║
ECHO ║1 GB = 1073741824 / 8589934592      ║
ECHO ║1 TB = 1099511627776 / 8796093022208║
ECHO ╚════════════════════════════════════╝
ECHO Enter the file size to be created in bytes:
SET /p size=!size2!

IF EXIST !newf! DEL /S /Q /F !newf! >NUL

fsutil file createnew !newf! !size! >NUL

ECHO Finished!
TIMEOUT 2 /NOBREAK >NUL
GOTO top