only do if day… batch file

Question

hello i got a batch file, something like this:

if %day%==monday, tuesday, wednesday, thursday, friday (
goto yes
) else (
goto no
)

Now i know

Answer 1

Here is a batch file that extracts day-of-week, day, month and year in an almost locale-neutral way.

The only locale specific thing is the spelling of the day-of-week, the rest is locale neutral.

So in English, it will return Thu for Thursday, but in Dutch that will be do (for donderdag).

:: http://stackoverflow.com/questions/203090/how-to-get-current-datetime-on-windows-command-line-in-a-suitable-format-for-usi
:: Works on any NT/2k machine independent of regional date settings
::
:: 20110103 - adapted by jeroen@pluimers.com for Dutch locale
:: 20110303 - adapted by jeroen@pluimers.com for day-of-week
:: Dutch will get jj as year from echo:^|date, so the '%%c' trick does not work as it will fill 'jj', but we want 'yy'
:: luckily, all countries seem to have year at the end: http://en.wikipedia.org/wiki/Calendar_date
::            set '%%c'=%%k
::            set 'yy'=%%k
::
:: Also, in Dutch, there is a difference between %date% and date/t: the former will not include
:: the day-of-the-week, but the latter will.
:: That means the if "%date%A" LSS "A" trick does not work with %date%, we need a loop
:: to check if the day-of-the-week needs us to take tokens 2-4 in stead of 1-3:
::      if "%date%A" LSS "A" (set toks=1-3) else (set toks=2-4)
::      for /f "tokens=1" %%t in ('date/t') do (...)
::
:: Another difference between Dutch and English is that the Dutch date/t will prepend the day of the week in a lower case 2-letter form.
:: So the LSS "A" trick needs to be replaced with an LSS "a" trick
::      if "%date%A" LSS "A" (set toks=1-3) else (set toks=2-4)
::        if "%%ta" LSS "a" (set toks=1-3) else (set toks=2-4)
::
:: In addition, date will display the current date before the input prompt using dashes
:: in Dutch, but using slashes in English, so there will be two occurances of the outer loop in Dutch
:: and one occurence in English.
:: This skips the first iteration:
::        if "%%a" GEQ "A"
::
:: echo:^|date
:: Huidige datum: ma 03-01-2011
:: Voer de nieuwe datum in: (dd-mm-jj)
:: The current date is: Mon 01/03/2011
:: Enter the new date: (mm-dd-yy)
::
:: date/t
:: ma 03-01-2011
:: Mon 01/03/2011
::
:: The assumption in this batch-file is that echo:^|date will return the date format
:: using either mm and dd or dd and mm in the first two valid tokens on the second line, and the year as the last token.
::
:: The outer loop will get the right tokens, the inner loop assigns the variables depending on the tokens.
:: That will resolve the order of the tokens.
::
@ECHO off
    set v_day_of_week=
    set v_day=
    set v_month=
    set v_year=

    SETLOCAL ENABLEEXTENSIONS
      for /f "tokens=1" %%t in ('date/t') do (
        set v_day_of_week=%%t
        if "%%ta" LSS "a" (set toks=1-3) else (set toks=2-4)
      )
::DEBUG echo toks=%toks%
      for /f "tokens=2-4 delims=(-)" %%a in ('echo:^|date') do (
::DEBUG echo first token=%%a
        if "%%a" GEQ "A" (
          for /f "tokens=%toks% delims=.-/ " %%i in ('date/t') do (
            set '%%a'=%%i
            set '%%b'=%%j
            set 'yy'=%%k
          )
        )
      )
      if %'yy'% LSS 100 set 'yy'=20%'yy'%
      set Today=%'yy'%-%'mm'%-%'dd'%

    ENDLOCAL & SET day_of_week=%v_day_of_week% & SET v_year=%'yy'%& SET v_month=%'mm'%& SET v_day=%'dd'%

    ECHO Today is Year: [%V_Year%] Month: [%V_Month%] Day: [%V_Day%]
    set datestring=%V_Year%%V_Month%%V_Day%
    echo %datestring%
    echo day of week=%day_of_week%

    :EOF

Have fun with it!

--jeroen