On how to delete a chunk of text contained in multiple lines: use sed to catch the range (/a/,/b/)

There were some javascript google ads calls from a page I downloaded via wget, doing:

 wget www.someSite.com/somePage.html > toCleanItUp.htlm

After highlighting all the page C-x h I did a M-x shell-command-on-region and used the following:

sed "/<script .*>/,/<\/script>/d" > nowItIsClean.html

If feeling lazy, (or if I don’t have the file opened already in an emacs buffer), there’s the straightforward way of using cat:

cat toCleanItUp.html | sed "/<script .*>/,/<\/script>/d" > nowItIsClean.html

Ah, the beauty of unix tools!