I want to create a batch file which will create a dumpfile every DAY. So I want to set the name of the dump file as production_. Now how to include date in the file name
please helpYou could assign values to variables like dd, mm, yy or yyyy as follows:
set dd=%date:~7,2%
set mm=%date:~4,2%
set yy=%date:~12,2%
or
set yyyy=%date:~10,4%

where:
:~ will get a substring that starts in the position specified the fist number
getting as many character as specified in the second number (after the comma)
note that the fist position starts at 0
%date% is the system date, usually like "Wed 01/19/2005"

Then you call your variables as usual (%var%) to rename FILES, like
REN myFile.txt myFile%yy%%mm%%dd%.txt or
REN myFile.txt myFile%yyyy%%mm%%dd%.txt

Of course, you could directly do everything in one STEP:
REN myFile.txt myFile%date:~12,2%%date:~4,2%%date:~7,2%.txt or
REN myFile.txt myFile%date:~10,4%%date:~4,2%%date:~7,2%.txt

Enjoy!

-Carolina
Many many thanks Carolina
This serves my purpose.
Thanks
jayati

Dang. I can't get this to work at all (the substringing). Is there some CMD extension that I have to turn on. I am on NT.Try this:

@echo off
for /f "tokens=1-4 delims=/ " %%i in ("%DATE%") do ren filename production_ %%j%%k%%l

%%j = mm
%%k = dd
%%l = yy

You may have to re-arrange the variables if your date format is not mm/dd/yy

Hope this helps.