I have multiple .png files (for example:
pic_200.png). These are basically separate pages of the book.
I want to create a single printing job, that will print 2 such pictures per one physical page, so it would look like a usual book spread.
I've tried to do this like this:
lp pic_001.png pic_002.png pic_003.png pic_004.png -d color-printer-1 -o sides=one-sided -o number-up=2
but it was printing only 1 picture per 1 page.
The same result with the for-loop:
for i in `seq 1 2 8`; do lp pic_00$i.png pic_00$[$i + 1].png -d color-printer-1 -o sides=one-sided -o number-up=2; done
but also this creates separate jobs per pair of pictures.