Byte Conversion

Discussion forum for all Windows batch related topics.

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Joined: 24 Apr 2011 19:20

Byte Conversion

#1 Post by alleypuppy » 01 Mar 2012 21:01


I'm working on a batch file that backs up data and I want the file to show the current file size in bytes, kilobytes, megabytes, and gigabytes. I know how to get the file size in bytes, but converting it is the problem. I know I can do [size in bytes]/1024 to find the size in kilobytes, but this doesn't always work due to 32-bit floating point limitations (i.e. doing "set /a var=1564231685254/1024" yields this error: Invalid number. Numbers are limited to 32-bits of precision).

Is there any way to get around this?

Thanks in advance!

Posts: 6033
Joined: 10 Feb 2012 02:20

Re: Byte Conversion

#2 Post by foxidrive » 01 Mar 2012 23:12

You can use Windows Scripting Host and VBS or Jscript.

Also google for Timo Salmi's msdos and batch faq and you might find some sample code.

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