the patch should be:
$cmd || true
else
- $cmd "$file" || true
+ $cmd "$file" $2
fiThere is a start page param after the file: usage: /usr/lib/mupdf/mupdf-x11 [options] file.pdf [page] - the proposed 'exec' leaves a tmp-file in /tmp ! (- I see no reason for the 'true'?)

