shell - read xml value

xml.sh

if [ -e "yfollowers" ]
then
	
	NAMES=`cat yfollowers`
	for value in $NAMES
	do
		if [[ $value =~ \<screen_name\>([0-9a-zA-Z_]*)\<\/screen_name\> ]];then
	        i=1
	        n=${#BASH_REMATCH[*]}
	        while [[ $i -lt $n ]]
	        do
				u=${BASH_REMATCH[$i]}

				echo $u
				echo $u >> tmp
				
	            let i++
	
				break
				
	        done
	        shift

		fi
	done
	
	rm yfollowers

	if [ -e "followers" ]
	then
		rm followers
	fi

	sort tmp | uniq > followers

	rm tmp

else
	echo "no followers"

fi