#!/bin/bash
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")

while read 'line';
do
#8-point check:
	cate=$(exiv2 -g Iptc.Application2.Category -Pv $line)
	if [[ "$cate" == "" ]]; then cate2=" Category Tag";fi
	cred=$(exiv2 -g Iptc.Application2.Credit -Pv $line)
	if [[ "$cred" == "" ]]; then cred2=" Credit Tag";fi
	sour=$(exiv2 -g Iptc.Application2.Source -Pv $line)
	if [[ "$sour" == "" ]]; then sour2=" Source Tag";fi
	writ=$(exiv2 -g Iptc.Application2.Writer -Pv $line)
	if [[ "$writ" == "" ]]; then writ2=" Writer Tag";fi
	trans=$(exiv2 -g Iptc.Application2.TransmissionReference -Pv $line)
	if [[ "$trans" == "" ]]; then trans2=" Transmission Reference Tag";fi
	fixid=$(exiv2 -g Iptc.Application2.FixtureId -Pv $line)
	if [[ "$fixid" == "" ]]; then fixid2=" Event/Fixture Identifier Tag";fi
	objnm=$(exiv2 -g Iptc.Application2.ObjectName -Pv $line)
	if [[ "$objnm" == "" ]]; then objnm2=" Object Name Tag";fi
	locn=$(exiv2 -g Iptc.Application2.SubLocation -Pv $line)
	if [[ "$locn" == "" ]]; then locn2=" Location Tag";fi
echo -e "Evaluating File #$x \ $line."
iptc=$(echo $cate2$cred2$sour2$writ2$trans2$fixid2$objnm2$locn2)
case "$iptc" in 
 "" ) ;;
 * ) echo -e "$line:$iptc">>fieldsmissing.txt 
 y=$[y+1]
 ;;
esac
x=$[x+1]
unset cate2
unset cred2
unset sour2
unset writ2
unset trans2
unset fixid2
unset objnm2
unset iptc
done<list.txt
if [ "$y" -gt "0" ]; then
	echo -ne "\n$x JPEG files evaluated,\nwith $y missing some or all of 
their required IPTC tag data.\nFile-by-file is in fieldsmissing.txt.\n"
else 
	echo -ne "\n$x JPEG files evaluated, none missing any required IPTC
 tag data.\nNo new information was written to fieldsmissing.txt.\n"
fi
IFS=$SAVEIFS