in shell bash: Read a file, get the md5 checksum, save it in a variable, make a copy of the file with the hash,

rename-with-md5sum.sh

#!/bin/bash

# http://stackoverflow.com/questions/3679296/only-get-hash-value-using-md5sum-without-filename

md5HASH=($(md5sum www/app/js/bundle.js| cut -d ' ' -f 1))
cp www/app/js/bundle.js www/app/js/bundle-$md5HASH.js;

# store in variable in file
echo "<?php define('HASH_EXT', '$md5HASH'); ?>" > www/app/inc/hash-bundle.php;