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Winbatch script to check a file's size and overwrite

Posted on 2009-04-01
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Last Modified: 2012-05-06
I need a Winbatch/VB script that will check the size of a file.  If the file is the predetermined size, it overwrite it with another file.  If the file is larger than a the predetermined size, it will do nothing.  I need the script to look in 2 specific directories for the file.

Can this be done?  I have been unsuccessful in getting this to work with Winbatch, but I admit I am just a novice at scripting right now.

Thanks for any help!
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Question by:Johnnynoname
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by:Justin_W_Chandler
ID: 24044063
Do you mean that if the file is smaller than a set size, it should be overwritten?
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by:Johnnynoname
ID: 24044270
I have a file that exists in both "C:\test" and "C:\test1" on the same machine.  

I need both files to be looked at and if they are the 2KB standard file size, then they get overwritten with the new 2KB file.  If they are any bigger then the 2KB size, they get ignored.
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by:Justin_W_Chandler
ID: 24049963
I'll get started for you. In the meantime, are you running this against a single file or multiple files?
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Author Comment

by:Johnnynoname
ID: 24050603
It's the same file, but in two separate directories on the local drive.  The filename is the same, but the paths are different
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Author Comment

by:Johnnynoname
ID: 24152437
Well....  this has been helpful!  I guess we can close this issue
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by:Justin_W_Chandler
ID: 24152681
My goodness I'm sorry I didn't click to track this question so I forgot to submit the script. I'm done with it, and I'll upload it for you within a few moments.

Justin Chandler
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Accepted Solution

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Justin_W_Chandler earned 125 total points
ID: 24152942
Here you go! Again, sorry for the delay

Justin Chandler
@echo off
setlocal enabledelayedexpansion
 
:: Set constant here. const_targetFileSize is in bytes
set const_targetFileSize=2048
set const_fileToCheck=FILE2CHK.TXT
set const_newFileSource=c:\temp
 
for /f "skip=5 tokens=4" %%A in ('dir /-c c:\test\%const_fileToCheck%') do (
   set var_fileSize=%%A
   if !var_fileSize! gtr %const_targetFileSize% copy /y "%const_newFileSource%\%const_fileToCheck%" c:\test
   echo Old file size is !var_fileSize!
   goto :exit_test)
:exit_test
 
for /f "skip=5 tokens=4" %%A in ('dir /-c c:\test1\%const_fileToCheck%') do (
   set var_fileSize=%%A
   if !var_fileSize! gtr %const_targetFileSize% copy /y "%const_newFileSource%\%const_fileToCheck%" c:\test1
   echo Old file size is !var_fileSize!
   goto :exit_test1)
:exit_test1

Open in new window

24286570-Check-file-size-and-ove.txt
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Author Comment

by:Johnnynoname
ID: 24207996
Thanks!  I'll take a look and see what's what
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Author Comment

by:Johnnynoname
ID: 24270411
Sorry about the delay, I was out of town for a few days.  Thanks for the script!  It works like a charm!
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