command for finding phpmailer files and line of code and change it to the latest version

phpmailer.sh

#!/bin/bash

wget https://raw.githubusercontent.com/PHPMailer/PHPMailer/master/class.phpmailer.php

for file in $(find /var/www/ -name 'class.phpmailer.php' -print) ; do
        echo $file
        cp $file $file.bak
        cp ./class.phpmailer.php $file
#        dir=$(dirname $file)
#        chown $(stat -c '%U' $dir):$(stat -c '%G' $dir) $file


done

https://isc.sans.edu/forums/diary/Critical+security+update+PHPMailer+5218+CVE201610033/21855/ finds also really old versions, e.g. 2.0.4. and change