@echo off
setlocal enableextensions enabledelayedexpansion

:: a bit about this is in chromeannoyances.
:: this puts all ram values into a file and opens them in excel to be summed.
:: a potential improvement would be to use
:: http://stackoverflow.com/questions/13201801/batch-file-to-sum-numbers-from-text-files-and-write-that-total-value-to-text-fil
:: and sum them, no excel required.


set tempfile1=%temp%\asdf1.a
set tempfile2=%temp%\asdf2.a
set tempfile3=%temp%\asdf3.a
set tempfile4=%temp%\asdf4.xls

tasklist >%tempfile1%
type %tempfile1% | grep "chrome" > %tempfile2%
cut -b 68- %tempfile2% > %tempfile3%
sed -r "s/\d32|K|,//g" %tempfile3% >%tempfile4%

:: start "C:\Program Files\Microsoft Office\Office14\excel.exe" "%tempfile3%"

set total=0
for /f %%f in (%tempfile4%) do @(set /a total+=%%f)>nul

:: --- added this
set a=%total%

if "%a:~-9,-6%"=="" echo ^< 1GB
if NOT "%a:~-13,-6%"=="" echo ^>=1GB

set yotta=%a:~-24,-21%
set zetta=%a:~-21,-18%
set exa=%a:~-18,-15%
set peta=%a:~-15,-12%
set tera=%a:~-12,-9%
set giga=%a:~-9,-6%
set mega=%a:~-6,-3%
set kilo=%a:~-3%

set prefix=

if NOT "!yotta!"=="" (
	set yotta=!yotta!,
    if "!prefix!"=="" (
    	set prefix=YB
    	echo !a:~-24,-21!!prefix!
    )
)

if NOT "!zetta!"=="" (
	set zetta=!zetta!,
	if "!prefix!"=="" (
      set prefix=ZB
      echo !a:~-21,-18!!prefix!
    )
)

if NOT "!exa!"=="" (
	set exa=!exa!,
	if "!prefix!"=="" (
      set prefix=EB
      echo !a:~-18,-15!!prefix!
    )
)

if NOT "!peta!"=="" (
	set peta=!peta!,
	if "!prefix!"=="" (
      set prefix=PB
      echo !a:~-15,-12!!prefix!
    )
)

if NOT "!tera!"=="" (
    set tera=!tera!,
    if "!prefix!"=="" (
      set prefix=TB
      echo !a:~-12,-9!!prefix!
    )
)

if NOT "!giga!"==""  (
    set giga=!giga!,
    if "!prefix!"=="" (
      set prefix=GB
      echo !a:~-9,-6!!prefix!
    )
)

if NOT "!mega!"==""  (
    set mega=!mega!,
    if "!prefix!"=="" (
      set prefix=MB
      echo !a:~-6,-3!!prefix!
    )
)

if "!mega!"=="" (
  if "!prefix!"=="" (
   set prefix=KB
   echo !kilo!
  )
)


echo !yotta!!zetta!!exa!!peta!!tera!!giga!!mega!!kilo!

if "%prefix%"=="YB" echo !a:~-24,-21!.!a:~-21!YB (rounded down)
if "%prefix%"=="TB" echo !a:~-12,-9!.!a:~-9,1!TB  (rounded down)
if "%prefix%"=="GB" echo !a:~-9,-6!.!a:~-6,1!GB (rounded down)
if "%prefix%"=="MB" echo !a:~-6,-3!.!a:~-3,1!MB (rounded down)


:: echo %a:~-13,-6%,%a:~-6,-3%,%a:~-3%
 set a=
:: -----------

echo %total%KB
set tempfile1=
set tempfile2=
set tempfile3=
set tempfile4=