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Scrape Images with wget

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The desire to download all images or video on the page has been around since the beginning of the internet.  Twenty years ago I would accomplish this task with a python script I downloaded.  I then moved on to browser extensions for this task, then started using a PhearJS Node.js JavaScript utility to scrape images.  All of these solutions are nice but I wanted to know how I could accomplish this task from command line.

To scrape images (or any specific file extensions) from command line, you can use wget:

wget -nd -H -p -A jpg,jpeg,png,gif -e robots=off http://boards.4chan.org/sp/

The script above downloads images across hosts (i.e. from a CDN or other subdomain) to the directory from which the command is run from.  You'll see downloaded media as they come down:

Reusing existing connection to s.4cdn.org:80.
HTTP request sent, awaiting response... 200 OK
Length: 1505 (1.5K) [image/jpeg]
Saving to: '1490571194319s.jpg'

1490571194319s.jpg 100%[=====================>] 1.47K --.-KB/s in 0s

2017-03-26 18:33:26 (205 MB/s) - '1490571194319s.jpg' saved [1505/1505]

FINISHED --2017-03-26 18:33:26--
Total wall clock time: 2.7s
Downloaded: 66 files, 412K in 0.2s (2.10 MB/s)

Everyone loves cURL, which is another awesome resource, but don't foget about wget, which is arguably easier to use!

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