#!/bin/sh
# script2: a real program with variables, input, 
#          and control flow

BOOK=$HOME/phonebook.data
echo find what name in phonebook
read NAME
if grep $NAME $BOOK > /tmp/pb.tmp
then
	echo Entries for $NAME
	cat /tmp/pb.tmp
else
	echo No entries for $NAME
fi
rm /tmp/pb.tmp