Download Unsplah Images https://stackoverflow.com/questions/20701428/periodically-scrape-and-download-all-images-from-a-website-with-javascript-auto

unsplah.cron

#!/bin/bash

export PATH=... # might not be needed, but sometimes the PATH is not set 
                # correctly in cron-called scripts. Copy the PATH setting you 
                # normally see under console.

cd YOUR_DIRECTORY # the directory where the script and imgs directory is located

{
echo "========================"
echo -n "run unsplash.sh from cron "
date

./unsplash.sh 

} >> OUT.log 2>> ERR.log

#0 3 * * * PATH_to_the/unsplash.cron
#This will run the script every day at 3:10.

unsplah.sh

mkdir imgs
I=1
while true ; do # for all the pages
        wget unsplash.com/page/$I -O tmppage
        grep '<a href.*<img src.*title' tmppage > tmppage.imgs
        if [ ! -s tmppage.imgs ] ; then # empty page - end the loop
                break
        fi
        echo "Reading page $I:"
        sed 's/^.*<a href="\([^"]*\)".*title="\([^"]*\)".*$/\1 \2/' tmppage.imgs | while read IMG POST ; do
                # for all the images on page
                TARGET=imgs/`echo $POST | sed 's|.*post/\(.*\)$|\1|' | sed 's|/|_|g'`.jpg
                echo -n "Photo $TARGET: "
                if [ -f $TARGET ] ; then # we already have this image
                        echo "already have"
                        continue
                fi
                echo "downloading"
                wget $IMG -O $TARGET
        done
        I=$((I+1))
done