Answers for "javascript read external page"

linux memory usage

// linux command for reporting used memory percentage
$ free | grep Mem | awk '{print $3/$2 * 100.0}'
23.8171

what process is using memory linux

ps aux --sort=-%mem | head

script src tag in html

<script type="text/javascript" 
         src="file.js">  
</script>

how to link javascript to html

<script src = "index.js"></script>