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removing files under a certain size using batch

Posted on 2010-11-11
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Last Modified: 2012-05-10
I am intetested in removing files under a certain size from any directory with a certain name.  So for instance, I want the batch to search multiple drives for folders called "battlequest" and delete any files in those folders under a certain size.  Below is an example of a working script that removes certain size files from a known path, perhaps that can help get you started.  

thanks in advance

pushd "f:\Program Files\games\battlequest"
for %%j in (*.pk3) do if %%~zj lss 1043000 del "%%~j"
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Question by:icecom4
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Qlemo earned 500 total points
ID: 34122303
Based on http:/Q_26601351.htm:
set folder=
for %%D in (A B C D E F G H I J K L M N O P Q R S T U V W X Y) do (
  for /F "tokens=*" %%P in ('dir /a:-d /s/b %%D:\*.pk3 ^| findstr /L /i "\battlequest\"') do (
      if %%~zP LSS 1043000 del /s /q "%%~P"
  )
)

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Author Comment

by:icecom4
ID: 34122542
this worked but I had to remove the quotes around "\battlequest\"

are they needed for anything?
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Author Comment

by:icecom4
ID: 34122569
ok and lastly, is there a command that will make the batch script activity invisable when active?  I know how to minimize the script window "/min" and clear "cls", but any other way to make it not visable to users that execute it?
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Expert Comment

by:Qlemo
ID: 34122632
Not really. Hiding such a window is often considered malicious by AV software. A tool to hide a running window is CmdOW (http://www.commandline.co.uk/cmdow/). You cannot hide the Window from start - for that you would need to start the batch file from e.g. VBS.
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Author Comment

by:icecom4
ID: 34122936
ok thanks.  the reason I am asking is because I am developing scripts to removed crappy menus forced on game users by some servers which players concider malicious.  The reason I dont want the script visable is because these server owners will view my script and try to bypass it.  But no worries.  

You mentioned that AV software may concider a script malicious.  Thats cool, so then I won't hide the windows.  Is there anything I should avoid putting in batch scripts that will trigger an AV alert?  I dont want a simple script to be blocked by AV.  

thanks again
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LVL 70

Expert Comment

by:Qlemo
ID: 34123049
Nothing of above will alert an AV. What can be problematic is
contacting an IP address, in particular with http or telnet - considered as very suspicious
accessing system32 folder
using applications containing a just-in-time decompression part
using Remote Control software
using software known to be capable of hiding, resizing, moving of windows
and some more.
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Author Comment

by:icecom4
ID: 34125705
I ping a local ip to create a delay.  Is that ok for AV?  

example:  ping 123.45.67.89 -n 1 -w %11500 > nul
ECHO.  done

thanks and I will close after this.  
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LVL 70

Expert Comment

by:Qlemo
ID: 34125845
That is ok, though the   -w %11500   looks strange. I guess it is to add a multiplier of 10 secs as an option if provided on the commandline.
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