Question

Creating batch file to delte text files

Asked by: Fredy992

I have a folder which contains several text files with different names. These files are generated everyday with the server's current date. I have these files for example: "CLIENT_20091029.txt", "CLIENT_20091030.txt", "CLIENT_20091031.txt", "CLIENT_20091101.txt", "CLIENT_20091102.txt", "CLIENT_20091103.txt", "CLIENT_20091104.txt". I need to create a batch file (.bat) to delete all files with the date of 5 days old from current date. I need to keep only the file which are not more then 5 days old. So using the files I mentioned as example the batch file will delete the files with the dates 20091029 and 20091030 and keep the others. How do I do this with a batch file ?

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Asked On
2009-11-04 at 03:47:07ID24870545
Tags

Microsoft Windows

Topics

Microsoft Operating Systems

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Microsoft Development

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Automation

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2
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250
Comments
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Answers

 

by: YZF-R1Posted on 2009-11-04 at 04:27:28ID: 25738605

Hi Fredy992,
This will delete all txt files older than 5 days (use with caution) D:\test2 will need renaming to your chosen directory.

forfiles /p d:\test2 /s /m *.txt /d -5 /c "cmd /c del @file : date >= 5 days"

Hope this helps ?

 

by: Fredy992Posted on 2009-11-04 at 04:32:39ID: 25738632

But what you are doing is checking the "Date created" date of the file correct ? I need to check the date inside the file name like mentioned in the example.

 

by: Fredy992Posted on 2009-11-04 at 04:53:51ID: 25738769

YZF-R1 your script also doesnt't work. It says that forfiles is not recnoized as an internal command.

 

by: dragon-itPosted on 2009-11-04 at 05:38:48ID: 25739120

forfiles is a resource kit / support tools add-on command that can be loaded.  I suggest you do a "request attention" and get this cross-posted in Windows batch and/or MSDOS areas

 

by: dragon-itPosted on 2009-11-04 at 05:44:13ID: 25739173

BTW is there only one file per day?  If so then the easiest way without involving dates at all is to delete all but the last five (in filename order or date as appropriate).   You can do this with a for loop reading a dir listing of the files, e.g.

@echo off
for /f "skip=5 tokens=*" %%a in ('dir /b /o-n "CLIENT_*.txt"') do echo Need to delete %%a

Should do it -- it take a dir listing of the spec. shown in reverse name order (i.e. newest first), skipping the first 5 entries.  If this gives you the files you want you can replace the echo %%a with a del "%%a" command.  We can add in and sort out paths to the files as needed too of course.

Steve

 

by: YZF-R1Posted on 2009-11-04 at 06:47:20ID: 25739791

Hi,
The script does work, I use this on a Vista machine (with no resource kit / support tools add-on installed) to delete log files created on a windows 2003 server. Perhaps this does not work on your Operating system.

However I take your point that it uses the "Date Created" rather than your date in the filename although if your are creating a file using "the server's current date" isn't that the same thing. Applogies & Good Luck !!

 

by: Fredy992Posted on 2009-11-04 at 08:14:10ID: 25740812

YZF-R1 also it reads the las modified date and not the created date. Take a look

 

by: dragon-itPosted on 2009-11-04 at 15:01:44ID: 25745030

Fredy992: Did you consider the script I posted above based on filenames?

Steve

 

by: dragon-itPosted on 2009-12-02 at 15:47:54ID: 25957846

YZF-R1 gave a valid solution under normal circumstances but it appears that it did not match the requirements of Fredy992 due to it working based on the date, while he required by filename.

My simpler solution of picking the last 5 files by name depends upon naming convention etc. but seems it would work with the example filenames at least with a date coded in them in reverse order as they have. - I know I use it or similar for aging a whole host of log files already.

So without the OP's input I would say both are valid solutions for a problem of this nature but to Accept mine as it is more likely to satisfy the requirements here?

Accept http:25739173   150 points
Assisted: 25738605 100 points

Does that sound fair... split it 50:50 if preferred, is only 250.

Steve

 

by: YZF-R1Posted on 2009-12-09 at 04:36:54ID: 26007506

I agree totally with dragon-it. Unfortemetely the OP did not IMHO explain fully or offer any further information.

I would also recommend dragon-it proposal.

Accept http:25739173   150 points
Assisted: 25738605 100 points

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