Collection.liquid
From Shopify Wiki
Overview
This template is responsible for showing a list of products. There are several liquid variables available exclusively to this template such as tags, current_tags and collection.
You can access all the products related to the current collection using collection.products.
Example of usage:
<ul>
{% for product in collections.products %}
<li><a href="{{product.url}}">{{product.title}}</a></li>
{% endfor %}
</ul>
Variables
The following variables are usable within collection.liquid
