#!/bin/bash
# ga.sh

find . -type f -iname "*.html" | while read i; do
    echo "Processing: $i"
    sed -i 's*</HEAD>\|</head>*\
<script>\
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){\
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1\*new Date();a=s.createElement(o),\
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)\
  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');\
\
  ga('create', 'UA-87145509-1', 'auto');\
  ga('send', 'pageview');\
</script>&*' "$i"

done