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Re: How to change file names?

• To: mathgroup at smc.vnet.net
• Subject: [mg70841] Re: How to change file names?
• From: "David Reiss" <dbreiss at gmail.com>
• Date: Sat, 28 Oct 2006 23:38:54 -0400 (EDT)
• References: <ehv9b5$gav$1@smc.vnet.net>

Simply use RenameFile:

In[1]:=?RenameFile


"RenameFile[\"file1\", \"file2\"] renames file1 to file2

--David

http://scientificarts.com/worklife



In[1]:=
?RenameFile
\!\(\*
  RowBox[{"\<\"RenameFile[\\\"file1\\\", \\\"file2\\\"] renames file1
to \
file2.\"\>", " ",
    ButtonBox[
      StyleBox["More\[Ellipsis]",
        "SR"],
      ButtonData:>"RenameFile",
      Active->True,
      ButtonStyle->"RefGuideLink"]}]\)


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.