#!/bin/sh

read guess


#while [ "$?" -ne 0 ]
while [ grep "$guess" /etc/passwd -ne 0 ]
	do	
		echo user not found please try again or type exit to quit
		read guess
			
			case $guess in
			exit)
			exit 1
			;;

			*)
			grep $guess /etc/passwd >/dev/null
			;;
			esac

done

finger $guess