jpegtran optimize without changing filename

Question

I need to optimize some images, but not change their name.

jpegtran -copy none -optimize image.jpg > image.jpg 

However, this seems to crea

Answer 1

I did it in three lines:

jpegtran -optimize image.jpg > image.jpg-opt
cp image.jpg-opt image.jpg
rm image.jpg-opt

Works well.

[edit:] This works only for one file at a time.