Problem : Get Yesterday date in MS DOS Batch file
Hi,
How do I obtain the yesterday date for MSDOS batch?
I am curently doing the following which is faulty. I am not sure how I can deduce the date correctly. Please advise. Thanks.
CM
————————–
for /F “tokens=1-4 delims=/- ” %%a in (‘date/T’) do set DATE=%%d%%c%%b
for /F “tokens=1-4 delims=/- ” %%a in (‘date/T’) do set /a DAY=%%b
set /a YESTERDAY = DATE – 1
echo %DAY%
if “%DAY%” == “1” (
set YESTERDAY=%DATE%
)else (
set YESTERDAY = DATE – 1
)
echo %YESTERDAY%
Solution : Get Yesterday date in MS DOS Batch file
Here’s a batch file I developed to subtract any number of days from the current date. It accepts a command line parameter of the number of days. The default is 1 day (yesterday):
@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%
echo Date %dayCnt% day(s) before %CurDate% is %mm%/%dd%/%yyyy%
