Описание тега head
Html element or unix command. Check if you should use html-head or unix-head instead.
The <head> element is a container for all the head elements.
The element must include a title for the document, and can include scripts, styles, meta information, and more.
The following elements can go inside the element:
<title> (this element is required in the head section)
<style>
<base>
<link>
<meta>
<script>
<noscript>
head is also a unix command which displays the first lines of a file. It's counterpart which displays the last lines is tail ( tail).
Example: head -n 10 file will output first 10 lines of file.