How to get a date in a batch file yesterday

Question

I know how to get the date today in Windows 7. here is the command I use:

%DATE:~6,4%%DATE:~3,2%%DATE:~0,2% 

But I want to receive yesterday, I do not know how.

Answer 1

If you are limited only to cmd.exe , then other solutions, despite their size, are probably as good as you. However, modern Windows (such as Win7) come with several other tools that can greatly simplify the work.

Just create a VBScript yester.vbs script as follows:

 d = date() - 1 wscript.echo year(d) * 10000 + month(d) * 100 + day(d) 

Then you can call it from your cmd script with:

 for /f %%a in ('cscript //nologo yester.vbs') do set yesterday=%%a 

and the variable yesterday will be created in the form of yyyymmdd so that you can manipulate, but you want to.

Answer 2

A script was found that will work for you to get the previous day, even if the year or month changes Dos Yesterday the batch version .

 @echo off set yyyy= set $tok=1-3 for /f "tokens=1 delims=.:/-, " %%u in ('date /t') do set $d1=%%u if "%$d1:~0,1%" GTR "9" set $tok=2-4 for /f "tokens=%$tok% delims=.:/-, " %%u in ('date /t') do ( for /f "skip=1 tokens=2-4 delims=/-,()." %%x in ('echo.^|date') do ( set %%x=%%u set %%y=%%v set %%z=%%w set $d1= set $tok=)) if "%yyyy%"=="" set yyyy=%yy% if /I %yyyy% LSS 100 set /A yyyy=2000 + 1%yyyy% - 100 set CurDate=%mm%/%dd%/%yyyy% set dayCnt=%1 if "%dayCnt%"=="" set dayCnt=1 REM Substract your days here set /A dd=1%dd% - 100 - %dayCnt% set /A mm=1%mm% - 100 :CHKDAY if /I %dd% GTR 0 goto DONE set /A mm=%mm% - 1 if /I %mm% GTR 0 goto ADJUSTDAY set /A mm=12 set /A yyyy=%yyyy% - 1 :ADJUSTDAY if %mm%==1 goto SET31 if %mm%==2 goto LEAPCHK if %mm%==3 goto SET31 if %mm%==4 goto SET30 if %mm%==5 goto SET31 if %mm%==6 goto SET30 if %mm%==7 goto SET31 if %mm%==8 goto SET31 if %mm%==9 goto SET30 if %mm%==10 goto SET31 if %mm%==11 goto SET30 REM ** Month 12 falls through :SET31 set /A dd=31 + %dd% goto CHKDAY :SET30 set /A dd=30 + %dd% goto CHKDAY :LEAPCHK set /A tt=%yyyy% %% 4 if not %tt%==0 goto SET28 set /A tt=%yyyy% %% 100 if not %tt%==0 goto SET29 set /A tt=%yyyy% %% 400 if %tt%==0 goto SET29 :SET28 set /A dd=28 + %dd% goto CHKDAY :SET29 set /A dd=29 + %dd% goto CHKDAY :DONE if /I %mm% LSS 10 set mm=0%mm% if /I %dd% LSS 10 set dd=0%dd% REM Set IIS and AWS date variables set IISDT=%yyyy:~2,2%%mm%%dd% set AWSDT=%yyyy%-%mm%-%dd% 

Answer 3

 @echo off :: Strip the day of the week from the current date FOR %%A IN (%Date%) DO SET Today=%%A :: Parse the date, prefix day and month with an extra leading zero FOR /F "tokens=1-3 delims=/" %%A IN ("%Today%") DO ( SET Day=0%%A SET Month=0%%B SET Year=%%C ) :: Remove excess leading zeroes SET Day=%Day:~-2% SET Month=%Month:~-2% :: Display the results SET Day SET Month SET Year :: Convert to Julian date CALL :JDate %Year% %Month% %Day% :: Display the result SET JDate :: Subtract 1 day SET /A JPast = JDate - 1 :: Display the result SET JPast :: Convert back to "normal" date again CALL :GDate %JPast% :: Display the result ::SET GDate=20130121 SET GDate echo The previous day in form YYYYMMDD is %GDate% pause :::::::::::::::::::::::::::::::::::::::::::::::::::::: GOTO:EOF :JDate :: Convert date to Julian :: Arguments : YYYY MM DD :: Returns : Julian date :: :: First strip leading zeroes SET MM=%2 SET DD=%3 IF %MM:~0,1% EQU 0 SET MM=%MM:~1% IF %DD:~0,1% EQU 0 SET DD=%DD:~1% :: :: Algorithm based on Fliegel-Van Flandern :: algorithm from the Astronomical Almanac, :: provided by Doctor Fenton on the Math Forum :: (http://mathforum.org/library/drmath/view/51907.html), :: and converted to batch code by Ron Bakowski. SET /A Month1 = ( %MM% - 14 ) / 12 SET /A Year1 = %1 + 4800 SET /A JDate = 1461 * ( %Year1% + %Month1% ) / 4 + 367 * ( %MM% - 2 -12 * % Month1% ) / 12 - ( 3 * ( ( %Year1% + %Month1% + 100 ) / 100 ) ) / 4 + %DD% - 32075 SET Month1= SET Year1= GOTO:EOF :GDate :: Convert Julian date back to "normal" Gregorian date :: Argument : Julian date :: Returns : YYYY MM DD :: :: Algorithm based on Fliegel-Van Flandern :: algorithm from the Astronomical Almanac, :: provided by Doctor Fenton on the Math Forum :: (http://mathforum.org/library/drmath/view/51907.html), :: and converted to batch code by Ron Bakowski. :: SET /AP = %1 + 68569 SET /AQ = 4 * %P% / 146097 SET /AR = %P% - ( 146097 * %Q% +3 ) / 4 SET /AS = 4000 * ( %R% + 1 ) / 1461001 SET /AT = %R% - 1461 * %S% / 4 + 31 SET /AU = 80 * %T% / 2447 SET /AV = %U% / 11 SET /A GYear = 100 * ( %Q% - 49 ) + %S% + %V% SET /A GMonth = %U% + 2 - 12 * %V% SET /A GDay = %T% - 2447 * %U% / 80 :: Clean up the mess FOR %%A IN (PQRSTUV) DO SET %%A= :: Add leading zeroes IF 1%GMonth% LSS 20 SET GMonth=0%GMonth% IF 1%GDay% LSS 20 SET GDay=0%GDay% :: Return value :: Here you can define the form that you want SET GDate=%GYear%%GMonth%%GDay% GOTO:EOF 

Answer 4

Here's a solution that creates the previousday.vbs file on the fly, uses it and deletes it later.

Saves the result in the NewDate variable

This example calculates 1 day ago, but can easily calculate the date later by changing the value of the offset variable.

 @echo off set Offset=1 echo d = date() - WScript.Arguments.Item(0) > earlierday.vbs echo wscript.echo year(d) * 10000 + month(d) * 100 + day(d) >> earlierday.vbs for /f %%a in ('cscript //nologo earlierday.vbs %Offset%') do set NewDate=%%a del earlierday.vbs echo %NewDate% pause 

You can refine this a bit by using% temp% \ earlyday.vbs to create a file in the temporary user folder.

Paxdiablo credits , as this is a simple setup in his previous post.

EDIT: There's something with a loop here, close to what I really need to do. It will take 14 days from today and return that date. Then he will continue to return 7 days until he reaches 35 days ago.

 @echo off SETLOCAL EnableDelayedExpansion set BackDaysFrom=14 Set BackDaysTo=35 Set BackDaysStep=7 echo d = date() - WScript.Arguments.Item(0) > earlierday.vbs echo wscript.echo year(d) * 10000 + month(d) * 100 + day(d) >> earlierday.vbs for /L %%i in (%BackDaysFrom%, %BackDaysStep%, %BackDaysTo%) do ( for /f %%a in ('cscript //nologo earlierday.vbs %%i') do set NewDate=%%a echo !NewDate! ) del earlierday.vbs pause