function png2jpeg() {
	echo 'Warning this command wil convert all png in jpeg recursively and delete png files'
	echo "Do you wish to Continue?"
	select yn in "Yes" "No"; do
    	case $yn in
        	Yes )
				for f in `find . -name "*.png"`
					do
						alpha=$(identify -format %A $f)
						if [ "$alpha" == 'False' ]
							then
	    					convert $f ${f/.png/.jpg}
    						rm $f
    					fi
					done
 				break;;
        	No )
				exit;;
    	esac
	done
}