Best of the Newsgroups: rename files script

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Subject: Re: Need to increment file name of set of files. Is there an easy way?
From: Anthony Lawrence <tony@pcunix.com>
Date: Tue, Feb 11, 2003 6:37 AM

In article <noemail-308131.02144511022003@cnews.newsguy.com>, Hobo
<noemail@noemail.com> wrote:

> hello,
> 
> I have 77 images named 0.gif through 76.gif, but I need them to be named 
> 1.gif through 77.gif.
> 
> Is there a freeware app which will do this for me?

I doubt it, but it's not hard to do at the shell.  The only real tricky
part is that you need to work backwards, starting at 76.gif and moving
down.


Save this as "renameit" and  then chmod 755 renameit

#!/bin/bash
for i in $(ls *.gif| sort -nr)
do
  x=$((${i%.gif} + 1))
  echo mv $i $x.gif
done

Watch the paren's and the brackets: that's x=dollar paren paren dollar
bracket i percent .gif closebracket space plus 1 closeparen closeparen

Once you are happy that will do what you want, take the "echo" out of
the next to last line and run it again.

> 
> I also believe that one of the images may be wrong, but it will be 
> easier to tell after I have renamed them. Once I find the wrong one I 
> will have to erase it and then rename all others after it. That's why 
> I'm to lazy to do it by hand.

And you'll just need a slight modification of the script to handle that.

-- 
Tony Lawrence
Learn more about SCO Unix, Mac OS X  or  Linux 
Free Sample Download:  http://aplawrence.com/skillstest.html
 

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