How to get and display yesterday date?
I am using the date command for a batch script.
I am wo开发者_JAVA百科ndering how to use command date to get yesterday date.The main danger with the date variable is the locale sensitivity. If you have PowerShell available (it's a lot more common these days even in the big corporations) then you can use PowerShell to do the formatting and wrap it within a batch FOR statement.
The following PowerShell line will do the maths and format the date for you:-
PowerShell $date = Get-Date; $date=$date.AddDays(-1); $date.ToString('yyyy-MM-dd')
You can then execute this via FOR to get it into a batch file variable (remembering to escape a whole bunch of characters with the hat ^ symbol, and using the backtick to avoid the embeded quotes):-
for /f "usebackq" %%i in (`PowerShell $date ^= Get-Date^; $date ^= $date.AddDays^(-1^)^; $date.ToString^('yyyy-MM-dd'^)`) do set YESTERDAY=%%i echo %YESTERDAY%
I'm sure someone with superior PowerShell and Batch programming skills can reduce the PowerShell command and/or the number of escaped characters to make it more readable/maintainable.
Anytime you hear batch, think Rob Van der Woude. Anyway, here's yesterday.bat.
Looking at @JRL's answer... If it's truly that hard, perhaps use PowerShell and then do similar to Powershell's Get-date: How to get Yesterday at 22:00 in a variable?
You can call to PowerShell in a bat file like so: Use bat to start Powershell script
You'll end up with a three or four liner solution rather than the 100 or so written (immaculately I'll add) by Rob Van der Woude.
Good luck...
There is a much cheaper way of doing this, exclusively in batch. I know its rough, but it worked for me.
Basically write yesterdays date into a text file like yesterday.txt
. Then call it next time the process runs. Works for a process I have that runs once a day only.
::pick up yesterdays date from file
::Needs to be done as the file generated today is *yesterdays* report.
for /F "tokens=1" %%a IN (D:\BIN\Yesterday.txt) DO set yest=%%a
::Write todays date to file for use tomorrow
echo %date% >D:\BIN\Yesterday.txt
Then you can call yesterdays date as variable with %yest%
.
I found this script to work well
@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%
The results would look like:
IIS Date: 130904
AWS Date: 2013-09-04
Script taken from http://www.powercram.com/2010/07/get-yesterdays-date-in-ms-dos-batch.html
Simply create a batch file and add this:
@echo off
set day=-1
echo >"%temp%\%~n0.vbs" s=DateAdd("d",%day%,now) : d=weekday(s)
echo>>"%temp%\%~n0.vbs" WScript.Echo year(s)^& right(100+month(s),2)^& right(100+day(s),2)
for /f %%a in ('cscript /nologo "%temp%\%~n0.vbs"') do set "result=%%a"
del "%temp%\%~n0.vbs"
set "YYYY=%result:~0,4%"
set "MM=%result:~4,2%"
set "DD=%result:~6,2%"
set "result=%yyyy%-%mm%-%dd%"
REM Below Will echo full date including year, month and yesterday's date.
echo %result%
REM Below line will echo yesterday's date (Day only).
echo %DD%
pause
1) Here's a script called yesterday.bat
:
@if (@x)==(@y) @end /***** jscript comment ******
@echo off
cscript //E:JScript //nologo "%~f0"
exit /b 0
@if (@x)==(@y) @end ****** end comment *********/
var d = new Date();
d.setDate(d.getDate() - 1);
var mm=(d.getMonth())+1
if (mm<10){
mm="0"+mm;
}
var dd=d.getDate();
if (dd<10) {
dd="0"+dd;
}
WScript.Echo(d.getFullYear()+""+mm+""+dd);
you can use it like
for /f %%a in ('yesterday.bat') do set "ystd=%%a"
2) Here's a one-liner with powershell which you most probably have installed:
powershell "[DateTime]::Today.AddDays(-1).ToString("""yyyyMMdd""")"
and you can assign this to variable:
for /f %%a in ('powershell "[DateTime]::Today.AddDays(-1).ToString("""yyyyMMdd""")"') do set ystd=%%a
i accomplished yesterdays date as follows.
set m=%date:~-7,2%
set /A m -= 1
set DATE_DIR=%date:~-10,2%-%m%-%date:~-4,4%
the format can be changed in line 3
sample output: 03-13-2013
this is the simplest way i found to do this.
The EASIEST way to get yesterdays date (YYYYMMDD) in batch is the following:
set D=%date:~-10,2%
set /A D -= 1
echo %date:~-4,4%%date:~-7,2%%D%
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