bash wget a remote URL, then extract the URLs from the anchor tags in that URL

getlinks

get from a remote file to STDOUT:

wget -qO- https://www.membrane-australasia.org/gallery/imstec-2016-adelaide-part-3/ | 
grep -Eoi '<a [^>]+>' | grep -Eo 'href="[^\"]+"' | 
grep -Eo '(http|https)://[a-zA-Z0-9./?=_-]*' |
uniq

get from a remote file to xargs and download each URL

wget -qO- https://www.membrane-australasia.org/gallery/imstec-2016-adelaide-part-1/ | grep -Eoi '<a [^>]+>' | grep -Eo 'href="[^\"]+"' | grep -Eo '(http|https)://[a-zA-Z0-9./?=_-]*' | uniq | xargs -n 1 -P 24 curl -LO

local file version:

grep -Eoi '<a [^>]+>' file.htm | grep -Eo 'href="[^\"]+"' | grep -Eo '(http|https)://[a-zA-Z0-9./?=_-]*' | uniq

Sources
https://unix.stackexchange.com/questions/181254/how-to-use-grep-and-cut-in-script-to-obtain-website-urls-from-an-html-file

Another easy way to get a list of URLs from a page is to use lynx: https://unix.stackexchange.com/a/684704