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Re: How to change file names?

• To: mathgroup at smc.vnet.net
• Subject: [mg70826] Re: How to change file names?
• From: albert <awnl at arcor.de>
• Date: Sat, 28 Oct 2006 23:37:58 -0400 (EDT)
• References: <ehv9b5$gav$1@smc.vnet.net>

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.

How about using RenameFile["g1.jpg","f1.jpg"]. To be on the save side, you
also might consider CopyFile and probably do a cleanup with DeleteFile as a
second step, when everything turns out to be o.k. ...

hth,

albert