[NTLUG:Discuss] shrink images globally

[Bobby Wrenn]

Terry Henderson wrote:
> I sometimes find the need to resize a whole directory of images to a
> certain size and would like to learn some efficient way to do it
> globally.  I use gimp, but it's several mouse clicks and you manually
> enter pixel sizes each time for each image and if there are 20 or 30
> images, well, you can imagine, it's time consuming.
> I'm usually wanting to make them smaller and all the same size. 
> convert -size 512x348 * 
> works well, but what you end up with is all of the originals
> untouched, and a whole new set of resized files with new names like,
> [assume we have just 4 files, p0001.jpg - p0004.jpg] p0004.jpg.0 
> p0004.jpg.1 p0004.jpg.2  p0004.jpg.3  When, what I'd rather do is just
> overwrite with same 'ol filenames as before.  Or just something
> besides adding .1 .2 .3 etc. to end of files, like p00040.jpg
> p00041.jpg p00042.jpg p00043.jpg Or just simply overwrite all and 
> leave them all same filenames, but just smaller images.
> 
> I can use command:
> convert -size 512x348 * +profile '*' smaller.jpg
> and that just gives me:  smaller.jpg.0 smaller.jpg.1 smaller.jpg.2 smaller.jpg.3
> Sounds so simple, but just don't see any way to do what I really want to do.
> Am I just using the wrong application?  or?
> 
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> 
I would add one more item to the request.
Instead of processing a directory. I would like to process an entire 
directory tree from the current directory on down with one short script.

Bobby