How to add date to folder in batch-file

[jussi]

I need a little bit help with batch-files: how can I rename a folder in a bat-file so that it contains a current date - such as folder1_20090108 (or any other date string format)? Without the need of typing the date myself, of course

I'm planning to create a simple batch file that would make a backup copy of one certain folder that contains my school project, and need that date to identify the version.

Cheers

Jussi

[Dusty]

It's always difficult when we do not know the format of your date which you didn't advise.  Here is a rename if your date format is 'day mm/dd/yyyy' - not tested.

Ren folder1 folder1_%date:~-4%%date:~4,2%%date:~7,2%

Renamed folder should be in the format folder1_yyyymmdd

You can substitute Copy for Ren when you copy the folder, no sense in copying then renaming.

Hope this helps.

[jussi]

It's always difficult when we do not know the format of your date which you didn't advise.  Here is a rename if your date format is 'day mm/dd/yyyy' - not tested.

Ren folder1 folder1_%date:~-4%%date:~4,2%%date:~7,2%

Renamed folder should be in the format folder1_yyyymmdd

You can substitute Copy for Ren when you copy the folder, no sense in copying then renaming.

Hope this helps.

Thanks for the code. My mistake, I didn't explain the order of numbers at example in my post - I did indeed mean format yyyymmdd.

-Jussi

[Salmon Trout]

Dusty means, you need to tell us the local date format you are using. You can see it using the date /t command. For example my local settings make the date look like this

Code: [Select]

C:\>date /t
09/01/2010
Or use a vbs / batch hybrid which is locale - independent

Code: [Select]

@echo off
Echo Wscript.echo eval(WScript.Arguments(0))>evaluate.vbs
For /f "delims=" %%Y in ( ' cscript //nologo evaluate.vbs "year(date)" ' ) do set yyyy=%%Y
For /f "delims=" %%M in ( ' cscript //nologo evaluate.vbs "month(date)" ' ) do set mm=%%M
For /f "delims=" %%D in ( ' cscript //nologo evaluate.vbs "day(date)" ' ) do set dd=%%D
del evaluate.vbs
if %mm% LSS 10 set mm=0%mm%
if %dd% LSS 10 set dd=0%dd%
set datestamp=%yyyy%%mm%%dd%
echo Datestamp is %datestamp%


Code: [Select]

Datestamp is 20100109