UNIX for Dummies Questions & Answers

$ echo "ABC:efg:5:6" | { IFS=: read a b c d ; echo "title:$a author:$b edition:$c whatever:$d" ; }
title:ABC author:efg edition:5 whatever:6
$ echo "ABC:efg:5:6" | { IFS=: read a b c d ; echo "title:$a\nauthor:$b\nedition:$c\nwhatever:$d" ; }
title:ABC
author:efg
edition:5
whatever:6
$

echo "Book name: "
read book
echo "Author name: "
read author
awk '/'"$book"'/&&/'"$author"'/' book.txt