Download all .jpg files from a web page

wget -r -A .jpg http://site.with.images/url/

Gather all links on the page

After you gather all needed links in browser console

$$('a .box').forEach(a => console.log(a.href));

or in case of Podcast RSS feed:

$$('[href$="mp3"]').forEach(a => console.log(a.href));

and copy them to the .txt file (and remember to remove quotes). Then you can use program wget to download them all in one go.

Download all links from a file

wget -i links.txt