Manual duplex printing wizard.

manualduplex.sh

#!/bin/bash
#
# author: Jan Vojt

# number of pages
nop=
while ! [[ "$nop" =~ ^[0-9]+$ ]]; do
	echo -n "Total number of pages in document: "
	read nop
done;

# pages per paper side -> 2*ppp pages per paper
ppp=
while ! [[ "$ppp" =~ ^[1246]$ ]]; do
        echo -n "Pages per paper side to print: "
        read ppp
done;

# correct naming according to printing setup
if [ $ppp -gt 1 ]; then
	page="sheet"
else
	page="page"
fi

# calculate total number of paper sides needed for the job
rem=`expr $nop % $ppp`
if [ $rem -gt 0 ]; then
        tot=`expr $nop / $ppp + 1`
else 
        tot=`expr $nop / $ppp`
fi

# calculate total number of papers needed for the job
rem=`expr $ppp \* 2`
rem=`expr $nop % $rem`
if [ $rem -gt 0 ]; then
	totpapers=`expr $nop / $ppp / 2 + 1`
else
	totpapers=`expr $nop / $ppp / 2`
fi

echo
echo "OK, let's start."
echo "You will need ${totpapers} blank papers in the input tray for the job."
echo

step=1;

echo "${step}. Print EVEN ${page}s in standard order."
echo -n "[OK]"
read
step=`expr $step + 1`


if [ $ppp -gt 1 ]; then
	echo "${step}. Take printed papers out of the output tray, and place into the input tray exactly as they came out (do not change their orientation)."
else
	echo "${step}. Take printed papers out of the output tray, turn them 180 degrees horizontally, and place into the input tray."
fi
echo -n "[OK]"
read
step=`expr $step + 1`


rem=`expr $tot % 2`
if [ $rem -eq 1 ]; then
	echo "${step}. Put a single blank paper onto the other printed pages in input tray."
	echo -n "[OK]"
	read
	step=`expr $step + 1`
fi


echo "${step}. Print ODD ${page}s in REVERSED order."
echo -n "[OK]"
read


echo "Enjoy your ordered printout you can find in output tray! ;)"