#!/bin/sh
# Sample answer for trap exercise
echo This script will sum all integers entered
trap "echo Sorry - I have to exit; sleep 2; exit" 2
while [ $# > 0 ]
do
        if [ .$1 = .-v ]; then
                tell=1
                shift
                continue
        fi
        if [ .$1 = .-h ]; then
                help=1
                shift
                continue
        fi
        break
done
if [ $tell ]; then
	set -x
	set -v
fi
if [ $help ]; then
	echo A friendly help message
	echo Run me like this please:-
	echo "$0 [-v] [-h]"
	exit
fi
total=0
count=0
while true
do
	echo -n "Please enter a number: "
	read inum
	if [ $inum = q ]; then
		break
	fi
	total=`expr $total + $inum`
	count=`expr $count + 1`
done
echo Sum = $total
echo Numbers entered was $count