How do I download all files and links internally, but keep external links as
external?
-%e0 (external depth of zero) didnt work

eg:

localhost/folder/index.html ---> index.html
localhost/folder/images/img1.png ----> ./images/img1.png
localhost/folder/js/js1.js ----> ./js/js1.js

but external links same the same in the index.html, eg:

google.com/googleanalytics.js ---> stays as google.com/googleanalytics.js 
(facebook ---> same, etc....)

I am using:

httrack <http://localhost/folder/> -O "siteCode" -v -Y -%e0