asked on

Batch File: Convert bytes to either KB, MB or GB with 2 decimal points

Hi there,

I need to create a batch file that will convert a number in bytes to either KB, MB or GB with 2 decimal points.

@echo off

FOR %%A IN (4321,1342.56,2145386496) do (
call :ConvertNumber
ECHO "%%A" is easyer to read like this: %ConvertedNumber%
)
ECHO.
PAUSE
EXIT

:ConvertNumber
whatever script
exit /b

RESULT:
4.21 KB
1.99 GB

Hoping this will be easy points for you.

Cheers,
Rene

ASKER CERTIFIED SOLUTION

Bill Prew

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ReneGe

ASKER

Thanks billprew,

Cool, this is very educational.

Thanks,
Rene

Bill Prew

Here are a couple of the tools I use from time to time. Best to rename CALC to something else, since calc.exe is now the Windows GUI calculator.

~bp
utils.zip

ReneGe

ASKER

Thanks pal!

Rene

ReneGe

ASKER

Here are some easy points for you:

https://www.experts-exchange.com/questions/26415780/Batch-File-String-manipulation.html

Cheers,
Rene

ReneGe

ASKER

Just sharing a related simple script I just did.

Cheers,
Rene

@echo off
setlocal enabledelayedexpansion

for %%A IN (1,1024,1048576,1073741824) do (
	SET FileSize=%%A
	CALL :ConvertFileSize
	echo %%A Bytes=!FileSize!
	)
PAUSE
exit

:ConvertFileSize
IF !FileSize! GEQ 1073741824 (SET /a FileSize=!FileSize! / 1073741824 && SET FileSize=!FileSize! GB && Exit/b)
IF !FileSize! GEQ 1048576 (SET /a FileSize=!FileSize! / 1048576 && SET FileSize=!FileSize! MB && Exit/b)
IF !FileSize! GEQ 1024 (SET /a FileSize=!FileSize! / 1024 && SET FileSize=!FileSize! KB && Exit/b)
IF !FileSize! LSS 1024 SET FileSize=!FileSize! Bytes
exit /b

Open in new window

Bill Prew

Just to show how the mathematician in me might approach it...

~bp

@echo off
setlocal enabledelayedexpansion
 
for %%A IN (1,1024,1048576,1073741824) do (
        SET FileSize=%%A
        CALL :ConvertFileSize
        echo %%A Bytes=!FileSize!
        )
PAUSE
 
for %%A IN (1,1024,1048576,1073741824) do (
        CALL :ScaleNumber %%A "FileSize"
        echo %%A Bytes=!FileSize!
        )
PAUSE
exit /b
 
:ConvertFileSize
IF !FileSize! GEQ 1073741824 (SET /a FileSize=!FileSize! / 1073741824 && SET FileSize=!FileSize! GB && Exit/b)
IF !FileSize! GEQ 1048576 (SET /a FileSize=!FileSize! / 1048576 && SET FileSize=!FileSize! MB && Exit/b)
IF !FileSize! GEQ 1024 (SET /a FileSize=!FileSize! / 1024 && SET FileSize=!FileSize! KB && Exit/b)
IF !FileSize! LSS 1024 SET FileSize=!FileSize! Bytes
exit /b
 
:ScaleNumber [input-number] [output-variable-name]
  set Number=%~1
  set Scale=1
  for /L %%A in (1,1,3) do (
    if !Number! GEQ 1024 (
      set /A "Number = Number >> 10"
      set /A Scale += 1
    )
  )
  for /F "tokens=%Scale% delims=," %%A in ("Bytes,KB,MB,GB") do set %~2=%Number% %%A
  exit /b

Open in new window

ReneGe

ASKER

bp,

Your just too cool!!

Cheers,
Rene