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@echo off
SETLOCAL ENABLEEXTENSIONS
SETLOCAL ENABLEDELAYEDEXPANSION
cd /d "%temp%"
call:jdate tnow "%date%"
for %%F in (*.*) do (
call:ftime tfile "%%F"
set /a diff=tnow-tfile
echo.%%~nxF is !diff! days old
)
ECHO.&PAUSE&GOTO:EOF
::-----------------------------------------------------------------------------------
::-- Functions start below here
::-----------------------------------------------------------------------------------
:ftime JD filename attr -- compares the time of two files, succeeds if condition is met, fails otherwise
:: -- JD [out] - valref file time in julian days
:: -- attr [in,opt] - time field to be used, creation/last-access/last-write, see 'dir /?', i.e. /tc, /ta, /tw, default is /tw
:$created 20060101 :$changed 20080219
:$source http://www.dostips.com
SETLOCAL
set file=%~2
set attr=%~3
if "%attr%"=="" set attr=/tw
for /f %%a in ('"dir %attr% /-c "%file%"|findstr "^^[0-1]""') do set T=%%a
call:jdate JD "%T%"
( ENDLOCAL & REM RETURN VALUES
IF "%~1" NEQ "" (SET %~1=%JD%) ELSE (echo.%JD%)
)
EXIT /b
:jdate JD DateStr -- converts a date string to julian day number with respect to regional date format
:: -- JD [out,opt] - julian days
:: -- DateStr [in,opt] - date string, e.g. "03/31/2006" or "Fri 03/31/2006" or "31.3.2006"
:$reference http://groups.google.com/group/alt.msdos.batch.nt/browse_frm/thread/a0c34d593e782e94/50ed3430b6446af8#50ed3430b6446af8
:$created 20060101 :$changed 20080219
:$source http://www.dostips.com
SETLOCAL
set DateStr=%~2&if "%~2"=="" set DateStr=%date%
for /f "skip=1 tokens=2-4 delims=(-)" %%a in ('"echo.|date"') do (
for /f "tokens=1-3 delims=/.- " %%A in ("%DateStr:* =%") do (
set %%a=%%A&set %%b=%%B&set %%c=%%C))
set /a "yy=10000%yy% %%10000,mm=100%mm% %% 100,dd=100%dd% %% 100"
set /a JD=dd-32075+1461*(yy+4800+(mm-14)/12)/4+367*(mm-2-(mm-14)/12*12)/12-3*((yy+4900+(mm-14)/12)/100)/4
ENDLOCAL & IF "%~1" NEQ "" (SET %~1=%JD%) ELSE (echo.%JD%)
EXIT /b
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