How to do batch exporting?

[rich2005]

Quote:I am taking the photos in .jpg format and loading them into GIMP.  Once I modify them, I want to export them back to the same .jpg format, I hope that answers your question.

Well that does not read like a batch process, to me that is one at a time.

Open a jpeg, modify it, export and it defaults to a jpeg.

If you have lots of modified files then BIMP the batch plugin can rename and export all the files to jpeg
or
If you have lots of layers there are plugins to export each layer to a separate jpg file.

more information please

Edit: There is another possibility.
You open an image, modify it, do nothing to export it
Open another image, modify it, do nothing to export it
...until you have many open un-exported image.
Then you want to export all at once.

there is an old script that will (save) export all open images.

Edit Again: Another day and I pulled that old script out of my archive. sg-save-all-open.scm attached. Unzip put it in your User profile scripts folder. Registers bottom of the file menu.
Beware and be very careful. It will immediately export all the open images overwriting the originals.  Make sure you have backups of the images before editing.