#!/usr/local/bin/bash

for ((i=1000; i<10000; i++)); do 
	read -p "enter l for lineart (default), or g for grayscale: " a; 
	if [ -z $a ]; then
		a='l'
	fi
	if [ $a == 'g' ]; then
		echo $i grayscale scan;
		scanimage --predef-window 8.5x11 --mode Gray --resolution 150 | \
		cjpeg -smooth 50 -quality 50 -grayscale -optimize  > $i.jpg
	else
		echo $i lineart scan;
		scanimage --predef-window 8.5x11 --mode Lineart | \
		pnmtopng > $i.png
	fi
done