How to bulk change .JPG to .jpg in a directory? (Solved)

[Eastern Counties]

When I download photos from my camera they are given a .JPG extension. Photobucket only seems to recognise .jpg. Is there any way I can bulk change the extension in Rox or Gimp?

Thanks

John

[aarf]

(EDIT: see next posts before you jump into this)
how is your php?
from the php manual, more details at
http://th2.php.net/manual/en/function.rename.php
havent tested it but would assume it would work.
basic code

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<?php
rename("/tmp/tmp_file.txt", "/home/user/login/docs/my_file.txt");
?>

to iterate through a directory:

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<?php

//changes files in $directory with extension $ext1 to have extension $ext2
//note that if file.ext2 already exists it will simply be over-written
function changeext($directory, $ext1, $ext2, $verbose = false, $testing=true) {
  if ($verbose && $testing) { echo "Testing only . . . <br />";}
  $num = 0;
  if($curdir = opendir($directory)) {
   if ($verbose) echo "Opening $directory . . .<br />";
   while($file = readdir($curdir)) {
     if($file != '.' && $file != '..') {

       $srcfile = $directory . '/' . $file;
       $string  = "$file";
       $str     = strlen($ext1);
       $str++;
       $newfile = substr($string, 0, -$str);
       $newfile = $newfile.'.'.$ext2;
       $dstfile = $directory . '/' . $newfile;

       if (eregi("\.$ext1". '$' ,$file)) { # Look at only files with a pre-defined extension, '$' ensures the ext is only at they end of the filename

         //I think the next two lines are unnecessary but they
         //don't hurt anything so I'm leaving them
         $fileHand = fopen($srcfile, 'r');
         fclose($fileHand);

         if (!$testing) {
            $result=rename($srcfile, $dstfile );
            if (!$result) echo "ERROR renaming $srcfile -> $dstfile<br />";
         }
      

         if ($verbose) echo "$srcfile -> $dstfile<br />";
       }

       if(is_dir($srcfile)) {
         $num += changeext($srcfile, $ext1, $ext2, $verbose, $testing);
       }
     }
   }
   closedir($curdir);
  }
  return $num;
}

$testing=true;
$verbose=true;

//example usages, first run with $testing set to false, then change $testing to true to do them for real:
//changeext('your/directory', 'php', 'html', $verbose,  $testing);
//changeext('your/directory', 'html', 'php',  $verbose, $testing);
?>

[puppyluvr]

Hello,
Use the bulk renaming feature of Rox...Highlight all the pics, right click, and select rename, and change the suffix to jpg....

[Flash]

Go with puppyluvr, unless you just want to try programming in php. I use Rox all the time to bulk change file names. It's fast, easy and the GUI is self-explanatory. I don't know why Windows doesn't include such a feature.

[aarf]

Hello,
Use the bulk renaming feature of Rox...Highlight all the pics, right click, and select rename, and change the suffix to jpg....

cool

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\.JPG

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.jpg

click "apply" then click "rename"

[Eastern Counties]

Thanks, puppyluvr, Flash & aarf. So it was sitting there all the time - simple when you know how.

Thanks again

John

[sky king]

Nice to know, thanks.

[Flash]

Nice to know, thanks.

What's nice to know?

[kerl]

Is there a way to do it recursively in a number of folders with subfolders?
For example replace .zip to .7z within a tree of directories

[Semme]

Isn't there a "MultiRename" in your menu?

[kerl]

Isn't there a "MultiRename" in your menu?

I'm afraid not.. Just a Filesystem->PRename

I think I tried MultiRename (there is a recent pet in the forum, right?) but did not work on Slacko 6.3.2

I'm afraid I've resorted to wine namely an app called den4b-renamer which seems to work well with Puppy well.. It cannot be restored after being minimized so in this case you're forced to kill it

[Semme]

Speak up if you don't understand how or from where to use this.

find . -iname "*zip*" -exec rename .zip .7z '{}' \;

[Flash]

Semme, is there a way to limit this to just a defined set of directories so it doesn't go through the entire computer, changing everything it finds?

I suppose if it were run from a console that had been opened in the directory that contains only the directories to be changed, that might do it. In Rox, the ` key opens a console in the directory Rox is in.

[Semme]

Yes, and correct.

"Rename" >> A Command Line Tool For Renaming Multiple Files in Linux

[kerl]

Speak up if you don't understand how or from where to use this.

find . -iname "*zip*" -exec rename .zip .7z '{}' \;

I don't understand upon what nor from where though I'd like to know how to script a bit like you to make a simplified gui imitation of den4b-renamer. I like this renamer because it allows you to build out a list of steps to take when renaming files. So, you could make a step-by-step list of rules to make the changes you need. It has full preview mode so you can be certain exactly what's going to change to what