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MathGroup Archive 2006

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Re: How to change file names?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70831] Re: [mg70819] How to change file names?
  • From: ggroup at sarj.ca
  • Date: Sat, 28 Oct 2006 23:38:07 -0400 (EDT)
  • References: <200610280922.FAA16139@smc.vnet.net>
  • Reply-to: ggroup at sarj.ca

Use the function RenameFile.

RenameFile["f1.jpg", "g1.jpg"]

Also, you can get a list of files using FileNames:

FileNames["*.jpg"]

On Saturday, October 28, 2006 at 5:22 AM, Solidifire wrote:

> There are n JPEG files, with file names f1, f2, ..., fn.
> I want to change their names to, for example, g1, g2, ..., gn.
> Of course the easiest way is to change file names by myself,
> but this is not convenient when n is large.
> How should I do by using Mathematica?
> I tried:

> Export["g1.jpg",
>   Import["f1.jpg", "JPEG"], "JPEG"]

> It does change the file name as I expect.
> There is, however, a side effect:
> somehow the file size in bytes of g1.jpg is one-tenth of that of
> f1.jpg.
> Besides, I have to read in the files and then write out the files
> -- I don't think these two steps are really necessary,
> because all I want to do is to change the file names.
> Is there any better method?
> Thank you in advance.




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