{% capture parks %} {% for image in site.static_files %} {% if image.path contains 'blog/national-parks-gallery/photos' %} {% unless image.path contains 'small' %} {% assign paths = image.path | split:'/' %} {{ paths[5] }} {% endunless %} {% endif %} {% endfor %} {% endcapture %} {% assign uniq_parks = parks | split:' ' | uniq %}
{% assign n = site.static_files | size %} {% assign images = site.static_files | sample: n %} {% for image in images %} {% if image.path contains 'blog/national-parks-gallery/photos' %} {% unless image.path contains 'small' %} {{ forloop.index }} {% endunless %} {% endif %} {% endfor %}
{% for park in uniq_parks %} {% endfor %}