How to set a variable with the date in Windows?

[tfg]

I want to create a script in those that renames a file by putting the date of the day in the name itself. Something like this: myarq_2004_05_30.zip. That is myarq_aaaa_mm_dd.zip (year, month and day). Can you do this in Windows?

[dr_gori]

Yes, it's perfectly possible! There are several ways to do this. I will put two of them:

Windows NT, 2000, XP \r\n

You create a script called setTodayD .txt with this text within:

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set data= 

hence you run this script:

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DATE /T >setdata.txt 
COPY settodayd.txt+setdata.txt data_var.bat 
CALL data_var.bat 
 
SET data=%data: =% 
SET data=%data:/=%

] Windows 98, 95 or \r\n

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:: __________________________________________________________________ 
:: 
::  Batch File:      DATETIME.BAT 
::  Author:          Frank-Peter Schultze 
:: 
::  Updates:         http://www.fpschultze.de/b6.htm 
::  Enhancement Req. 
::  And Bug Reports: support@fpschultze.de 
:: 
::  Built/Tested On: MS-DOS 6.22, Windows 98 SE, Windows NT 4.0 
::  Requirements:    OS: MS-DOS 5+, Windows NT4+ 
:: 
::  Purpose:         Set DATE/TIME Variable To The System Date/Time. 
:: 
::  Syntax:          No arguments required. 
:: 
::  State Changes:   Reduces free environment space. 
:: 
::  Assumptions And 
::  Limitations:     * Does not handle low environment errors. 
:: 
::  Last Update:     2002-02-25 
:: __________________________________________________________________ 
:: 
   @Echo Off 
    If Not %1'==/?' Goto Begin 
    Echo Sets DATE and TIME variable to the system date and time. 
    Echo. 
    Echo [Call] DATETIME 
    Goto End 
   :Begin 
    For %%V In (DATE TIME) Do Set %%V= 
    If %OS%'==Windows_NT' Goto %OS% 
    Echo @Prompt %%%%1 %%%%0 :: $D $T$_Set DATE=%%%%3$_Set TIME=%%%%4$_>%TEMP%.\$ATETIM0.BAT 
    %COMSPEC% /C %TEMP%.\$ATETIM0.BAT > %TEMP%.\$ATETIM1.BAT 
    Call %TEMP%.\$ATETIM1.BAT 
    Del %TEMP%.\$ATETIM?.BAT 
    Goto End 
   :Windows_NT 
    For /F "Tokens=2" %%D In ('Date /T') Do (Set DATE=%%D) 
    For /F            %%T In ('Time /T') Do (Set TIME=%%T) 
   :End